Deep example library

350 Compound Sentence Examples + Explanations

This is one of the site’s deepest example collections: 350 original examples organized across 15 practical categories. Search, filter, and compare patterns without reading the list in order.

Before you copy

What to notice in the examples

The connection should communicate a real relationship—addition, contrast, choice, result, or sequence—rather than using a coordinating conjunction as a mechanical way to make sentences longer.

  • Each side must be an independent clause.
  • Use a comma plus coordinating conjunction when appropriate.
  • A semicolon can join closely related independent clauses without a conjunction.
  • Choose punctuation according to the relationship and desired rhythm.
Worked format lab

See complete reasoning, not just isolated lines

Use these fuller examples to see what changes between a recognizable pattern and a finished piece of writing. The examples are original or explicitly illustrative, so they demonstrate structure without inventing real-world evidence.

Worked example 1Contrast

Two independent clauses

The draft was complete, but the evidence still needed checking.

Why it works: Both sides can stand alone; “but” accurately signals contrast.

Worked example 2Semicolon choice

Closely related clauses

The deadline did not move; the scope did.

Why it works: The semicolon preserves equal grammatical weight and lets the contrast remain compact.

Prompt → finished structure

See the decisions between the assignment and the final form

These transformations make the hidden planning step visible so the template does not become a fill-in-the-blanks substitute for judgment.

Transformation 1Comma splice → compound sentence

Starting material: Draft: The draft was ready, the sources were not checked.

Decisions
Choose valid coordination or a semicolon according to the relationship.

Result: The draft was ready, but the sources were not checked.

Transformation 2Run-on coordination → clearer hierarchy

Starting material: Draft joins five complete thoughts with and/so/but.

Decisions
Separate major moves or subordinate supporting information; preserve only the genuinely equal pair.

Result: A controlled compound sentence instead of a chain.

Depth by level

Increase the reasoning, not just the word count

LevelWhat changesQuality test
FoundationJoin two independent clauses with appropriate coordination or semicolon punctuation.Each clause can stand alone and the punctuation is valid.
Relationship controlChoose and, but, so, yet, or, or a semicolon according to the actual logical relationship.The connector communicates meaning rather than merely lengthening the sentence.
RevisionCompare compound structure with separate sentences or subordination and keep the clearest hierarchy.Coordination is deliberate, not a default for every related idea.
Reusable frameworks

Start from the decisions the format requires

Framework 1
Observation → function
1. What can the viewpoint actually perceive?
2. Which 1–2 details matter now?
3. What do those details change in image, pace, relationship, or action?
4. What interpretation remains uncertain?
Framework 2
Generic → specific revision
Generic line: [x]
Observable evidence: [x]
Context/constraint: [x]
Unnecessary inference removed: [x]
Revised line: [x]
Showing examples
1
Editor picks

The rain stopped, but the streets remained flooded.

2
Editor picks

Maya called the station, and Luis checked the bus schedule.

3
Editor picks

The draft was complete, yet the editor requested a new ending.

4
Editor picks

We can leave before sunrise, or we can wait for the first train.

5
Editor picks

The forecast looked clear, so the team moved the event outdoors.

6
Editor picks

The museum closes at six; the café remains open until eight.

7
Editor picks

I wanted to reply immediately, but I needed time to verify the numbers.

8
Editor picks

The alarm failed to ring, so we missed the early ferry.

9
Editor picks

The data looked promising; however, the sample was too small for a firm conclusion.

10
Editor picks

The meeting ended early, and everyone returned to their desks.

11
Editor picks

She could revise the opening, or she could cut the scene entirely.

12
Editor picks

The trail was steep, yet the group maintained a steady pace.

13
Editor picks

The test failed, so the team reran it.

14
Everyday

The train reached the station, and the teacher posted the rubric.

15
Everyday

The train reached the station, but the teacher posted the rubric.

16
Everyday

The train reached the station, so the teacher posted the rubric.

17
Everyday

The train reached the station, yet the teacher posted the rubric.

18
Everyday

Mira closed the kitchen window, and the librarian reserved the study room.

19
Everyday

Mira closed the kitchen window, but the librarian reserved the study room.

20
Everyday

Mira closed the kitchen window, so the librarian reserved the study room.

21
Everyday

Mira closed the kitchen window, yet the librarian reserved the study room.

22
Everyday

The neighbor returned the borrowed ladder, and the class completed the practice quiz.

23
Everyday

The neighbor returned the borrowed ladder, but the class completed the practice quiz.

24
Everyday

The neighbor returned the borrowed ladder, so the class completed the practice quiz.

25
Everyday

The neighbor returned the borrowed ladder, yet the class completed the practice quiz.

26
Everyday

A cyclist crossed the bridge, and the tutor explained the equation.

27
Everyday

A cyclist crossed the bridge, but the tutor explained the equation.

28
Everyday

A cyclist crossed the bridge, so the tutor explained the equation.

29
Everyday

A cyclist crossed the bridge, yet the tutor explained the equation.

30
Everyday

The baker packed the morning orders, and the editor marked the repeated sentence.

31
Everyday

The baker packed the morning orders, but the editor marked the repeated sentence.

32
Everyday

The baker packed the morning orders, so the editor marked the repeated sentence.

33
Everyday

The baker packed the morning orders, yet the editor marked the repeated sentence.

34
Everyday

The dog carried the red ball, and the analyst updated the forecast.

35
Everyday

The dog carried the red ball, but the analyst updated the forecast.

36
Everyday

The dog carried the red ball, so the analyst updated the forecast.

37
Everyday

The dog carried the red ball, yet the analyst updated the forecast.

38
School

The student revised the final paragraph, and our team documented the final decision.

39
School

The student revised the final paragraph, but our team documented the final decision.

40
School

The student revised the final paragraph, so our team documented the final decision.

41
School

The student revised the final paragraph, yet our team documented the final decision.

42
School

The teacher posted the rubric, and the manager approved the revised timeline.

43
School

The teacher posted the rubric, but the manager approved the revised timeline.

44
School

The teacher posted the rubric, so the manager approved the revised timeline.

45
School

The teacher posted the rubric, yet the manager approved the revised timeline.

46
School

The librarian reserved the study room, and the designer shared the prototype.

47
School

The librarian reserved the study room, but the designer shared the prototype.

48
School

The librarian reserved the study room, so the designer shared the prototype.

49
School

The librarian reserved the study room, yet the designer shared the prototype.

50
School

The class completed the practice quiz, and the coordinator sent the agenda.

51
School

The class completed the practice quiz, but the coordinator sent the agenda.

52
School

The class completed the practice quiz, so the coordinator sent the agenda.

53
School

The class completed the practice quiz, yet the coordinator sent the agenda.

54
School

The tutor explained the equation, and the engineer tested the backup system.

55
School

The tutor explained the equation, but the engineer tested the backup system.

56
School

The tutor explained the equation, so the engineer tested the backup system.

57
School

The tutor explained the equation, yet the engineer tested the backup system.

58
School

The editor marked the repeated sentence, and the lantern lit the empty hallway.

59
School

The editor marked the repeated sentence, but the lantern lit the empty hallway.

60
School

The editor marked the repeated sentence, so the lantern lit the empty hallway.

61
School

The editor marked the repeated sentence, yet the lantern lit the empty hallway.

62
Workplace

The analyst updated the forecast, and the detective opened the sealed envelope.

63
Workplace

The analyst updated the forecast, but the detective opened the sealed envelope.

64
Workplace

The analyst updated the forecast, so the detective opened the sealed envelope.

65
Workplace

The analyst updated the forecast, yet the detective opened the sealed envelope.

66
Workplace

Our team documented the final decision, and the musician played the final chord.

67
Workplace

Our team documented the final decision, but the musician played the final chord.

68
Workplace

Our team documented the final decision, so the musician played the final chord.

69
Workplace

Our team documented the final decision, yet the musician played the final chord.

70
Workplace

The manager approved the revised timeline, and the painter covered the old sign.

71
Workplace

The manager approved the revised timeline, but the painter covered the old sign.

72
Workplace

The manager approved the revised timeline, so the painter covered the old sign.

73
Workplace

The manager approved the revised timeline, yet the painter covered the old sign.

74
Workplace

The designer shared the prototype, and the child followed the silver footprints.

75
Workplace

The designer shared the prototype, but the child followed the silver footprints.

76
Workplace

The designer shared the prototype, so the child followed the silver footprints.

77
Workplace

The designer shared the prototype, yet the child followed the silver footprints.

78
Workplace

The coordinator sent the agenda, and the storm shook the loose shutters.

79
Workplace

The coordinator sent the agenda, but the storm shook the loose shutters.

80
Workplace

The coordinator sent the agenda, so the storm shook the loose shutters.

81
Workplace

The coordinator sent the agenda, yet the storm shook the loose shutters.

82
Workplace

The engineer tested the backup system, and the council approved the tree-planting plan.

83
Workplace

The engineer tested the backup system, but the council approved the tree-planting plan.

84
Workplace

The engineer tested the backup system, so the council approved the tree-planting plan.

85
Workplace

The engineer tested the backup system, yet the council approved the tree-planting plan.

86
Creative

The lantern lit the empty hallway, and the clinic mailed the appointment reminders.

87
Creative

The lantern lit the empty hallway, but the clinic mailed the appointment reminders.

88
Creative

The lantern lit the empty hallway, so the clinic mailed the appointment reminders.

89
Creative

The lantern lit the empty hallway, yet the clinic mailed the appointment reminders.

90
Creative

The detective opened the sealed envelope, and the museum opened the new exhibit.

91
Creative

The detective opened the sealed envelope, but the museum opened the new exhibit.

92
Creative

The detective opened the sealed envelope, so the museum opened the new exhibit.

93
Creative

The detective opened the sealed envelope, yet the museum opened the new exhibit.

94
Creative

The musician played the final chord, and the volunteers sorted the donated books.

95
Creative

The musician played the final chord, but the volunteers sorted the donated books.

96
Creative

The musician played the final chord, so the volunteers sorted the donated books.

97
Creative

The musician played the final chord, yet the volunteers sorted the donated books.

98
Creative

The painter covered the old sign, and the bus driver reported the broken display.

99
Creative

The painter covered the old sign, but the bus driver reported the broken display.

100
Creative

The painter covered the old sign, so the bus driver reported the broken display.

101
Creative

The painter covered the old sign, yet the bus driver reported the broken display.

102
Creative

The child followed the silver footprints, and the gardener watered the young trees.

103
Creative

The child followed the silver footprints, but the gardener watered the young trees.

104
Creative

The child followed the silver footprints, so the gardener watered the young trees.

105
Creative

The child followed the silver footprints, yet the gardener watered the young trees.

106
Creative

The storm shook the loose shutters, and the river carried the fallen branches.

107
Creative

The storm shook the loose shutters, but the river carried the fallen branches.

108
Creative

The storm shook the loose shutters, so the river carried the fallen branches.

109
Creative

The storm shook the loose shutters, yet the river carried the fallen branches.

110
Community

The council approved the tree-planting plan, and the wind moved the dry leaves.

111
Community

The council approved the tree-planting plan, but the wind moved the dry leaves.

112
Community

The council approved the tree-planting plan, so the wind moved the dry leaves.

113
Community

The council approved the tree-planting plan, yet the wind moved the dry leaves.

114
Community

The clinic mailed the appointment reminders, and the sun warmed the stone wall.

115
Community

The clinic mailed the appointment reminders, but the sun warmed the stone wall.

116
Community

The clinic mailed the appointment reminders, so the sun warmed the stone wall.

117
Community

The clinic mailed the appointment reminders, yet the sun warmed the stone wall.

118
Community

The museum opened the new exhibit, and the rain filled the shallow ditch.

119
Community

The museum opened the new exhibit, but the rain filled the shallow ditch.

120
Community

The museum opened the new exhibit, so the rain filled the shallow ditch.

121
Community

The museum opened the new exhibit, yet the rain filled the shallow ditch.

122
Community

The volunteers sorted the donated books, and the tide covered the lower steps.

123
Community

The volunteers sorted the donated books, but the tide covered the lower steps.

124
Community

The volunteers sorted the donated books, so the tide covered the lower steps.

125
Community

The volunteers sorted the donated books, yet the tide covered the lower steps.

126
Community

The bus driver reported the broken display, and the frost silvered the garden fence.

127
Community

The bus driver reported the broken display, but the frost silvered the garden fence.

128
Community

The bus driver reported the broken display, so the frost silvered the garden fence.

129
Community

The bus driver reported the broken display, yet the frost silvered the garden fence.

130
Community

The gardener watered the young trees, and the train reached the station.

131
Community

The gardener watered the young trees, but the train reached the station.

132
Community

The gardener watered the young trees, so the train reached the station.

133
Community

The gardener watered the young trees, yet the train reached the station.

134
Nature

The river carried the fallen branches, and mira closed the kitchen window.

135
Nature

The river carried the fallen branches, but mira closed the kitchen window.

136
Nature

The river carried the fallen branches, so mira closed the kitchen window.

137
Nature

The river carried the fallen branches, yet mira closed the kitchen window.

138
Nature

The wind moved the dry leaves, and the neighbor returned the borrowed ladder.

139
Nature

The wind moved the dry leaves, but the neighbor returned the borrowed ladder.

140
Nature

The wind moved the dry leaves, so the neighbor returned the borrowed ladder.

141
Nature

The wind moved the dry leaves, yet the neighbor returned the borrowed ladder.

142
Nature

The sun warmed the stone wall, and a cyclist crossed the bridge.

143
Nature

The sun warmed the stone wall, but a cyclist crossed the bridge.

144
Nature

The sun warmed the stone wall, so a cyclist crossed the bridge.

145
Nature

The sun warmed the stone wall, yet a cyclist crossed the bridge.

146
Nature

The rain filled the shallow ditch, and the baker packed the morning orders.

147
Nature

The rain filled the shallow ditch, but the baker packed the morning orders.

148
Nature

The rain filled the shallow ditch, so the baker packed the morning orders.

149
Nature

The rain filled the shallow ditch, yet the baker packed the morning orders.

150
Nature

The tide covered the lower steps, and the dog carried the red ball.

151
Nature

The tide covered the lower steps, but the dog carried the red ball.

152
Nature

The tide covered the lower steps, so the dog carried the red ball.

153
Nature

The tide covered the lower steps, yet the dog carried the red ball.

154
Nature

The frost silvered the garden fence, and the student revised the final paragraph.

155
Nature

The frost silvered the garden fence, but the student revised the final paragraph.

156
Nature

The frost silvered the garden fence, so the student revised the final paragraph.

157
Nature

The frost silvered the garden fence, yet the student revised the final paragraph.

158
And

The rain stopped, and the streetlights reflected in the puddles.

159
And — reversed

the streetlights reflected in the puddles, and the rain stopped.

160
But

The rain stopped, but the sidewalks remained flooded.

161
Yet

The rain stopped, yet the sidewalks remained flooded.

162
So

The rain stopped, so we reopened the courtyard.

163
Semicolon

The rain stopped; the streetlights reflected in the puddles.

164
However

The rain stopped; however, the sidewalks remained flooded.

165
Or

The rain stopped, or we can wait inside.

166
And

The draft was complete, and the editor began the citation check.

167
And — reversed

the editor began the citation check, and the draft was complete.

168
But

The draft was complete, but the evidence still needed verification.

169
Yet

The draft was complete, yet the evidence still needed verification.

170
So

The draft was complete, so the team moved to final review.

171
Semicolon

The draft was complete; the editor began the citation check.

172
However

The draft was complete; however, the evidence still needed verification.

173
Or

The draft was complete, or we can send it tomorrow.

174
And

The bus arrived, and the doors opened immediately.

175
And — reversed

the doors opened immediately, and the bus arrived.

176
But

The bus arrived, but the last passenger was still running.

177
Yet

The bus arrived, yet the last passenger was still running.

178
So

The bus arrived, so we reached the station on time.

179
Semicolon

The bus arrived; the doors opened immediately.

180
However

The bus arrived; however, the last passenger was still running.

181
Or

The bus arrived, or we can take the train instead.

182
And

Maya finished the table, and luis checked the totals.

183
And — reversed

Luis checked the totals, and maya finished the table.

184
But

Maya finished the table, but the source note was missing.

185
Yet

Maya finished the table, yet the source note was missing.

186
So

Maya finished the table, so the report moved to review.

187
Semicolon

Maya finished the table; luis checked the totals.

188
However

Maya finished the table; however, the source note was missing.

189
Or

Maya finished the table, or we can leave the chart out.

190
And

The forecast improved, and the organizers uncovered the stage.

191
And — reversed

the organizers uncovered the stage, and the forecast improved.

192
But

The forecast improved, but the wind remained strong.

193
Yet

The forecast improved, yet the wind remained strong.

194
So

The forecast improved, so the event moved outdoors.

195
Semicolon

The forecast improved; the organizers uncovered the stage.

196
However

The forecast improved; however, the wind remained strong.

197
Or

The forecast improved, or we can keep the indoor room.

198
And

The café closed, and the staff stacked the chairs.

199
And — reversed

the staff stacked the chairs, and the café closed.

200
But

The café closed, but the kitchen lights stayed on.

201
Yet

The café closed, yet the kitchen lights stayed on.

202
So

The café closed, so we walked to the bakery.

203
Semicolon

The café closed; the staff stacked the chairs.

204
However

The café closed; however, the kitchen lights stayed on.

205
Or

The café closed, or we can meet tomorrow.

206
And

The test passed, and the engineer saved the results.

207
And — reversed

the engineer saved the results, and the test passed.

208
But

The test passed, but one warning still appeared.

209
Yet

The test passed, yet one warning still appeared.

210
So

The test passed, so the build moved to staging.

211
Semicolon

The test passed; the engineer saved the results.

212
However

The test passed; however, one warning still appeared.

213
Or

The test passed, or we can repeat the test.

214
And

The trail narrowed, and the group slowed down.

215
And — reversed

the group slowed down, and the trail narrowed.

216
But

The trail narrowed, but the markers remained clear.

217
Yet

The trail narrowed, yet the markers remained clear.

218
So

The trail narrowed, so we reached the ridge safely.

219
Semicolon

The trail narrowed; the group slowed down.

220
However

The trail narrowed; however, the markers remained clear.

221
Or

The trail narrowed, or we can turn back here.

222
And

The customer replied, and the support agent opened the account notes.

223
And — reversed

the support agent opened the account notes, and the customer replied.

224
But

The customer replied, but the requested screenshot was missing.

225
Yet

The customer replied, yet the requested screenshot was missing.

226
So

The customer replied, so the case moved forward.

227
Semicolon

The customer replied; the support agent opened the account notes.

228
However

The customer replied; however, the requested screenshot was missing.

229
Or

The customer replied, or we can ask for more detail.

230
And

The meeting ended, and priya posted the notes.

231
And — reversed

Priya posted the notes, and the meeting ended.

232
But

The meeting ended, but no owner accepted the final action.

233
Yet

The meeting ended, yet no owner accepted the final action.

234
So

The meeting ended, so the team returned to work.

235
Semicolon

The meeting ended; priya posted the notes.

236
However

The meeting ended; however, no owner accepted the final action.

237
Or

The meeting ended, or we can schedule a follow-up.

238
And

The power returned, and the servers restarted automatically.

239
And — reversed

the servers restarted automatically, and the power returned.

240
But

The power returned, but the dashboard still showed stale data.

241
Yet

The power returned, yet the dashboard still showed stale data.

242
So

The power returned, so the team began validation.

243
Semicolon

The power returned; the servers restarted automatically.

244
However

The power returned; however, the dashboard still showed stale data.

245
Or

The power returned, or we can keep the backup environment.

246
And

The library reopened, and families filled the reading room.

247
And — reversed

families filled the reading room, and the library reopened.

248
But

The library reopened, but the computer lab remained closed.

249
Yet

The library reopened, yet the computer lab remained closed.

250
So

The library reopened, so staff resumed normal service.

251
Semicolon

The library reopened; families filled the reading room.

252
However

The library reopened; however, the computer lab remained closed.

253
Or

The library reopened, or we can use the mobile devices.

254
And

The river fell overnight, and workers reopened the lower path.

255
And — reversed

workers reopened the lower path, and the river fell overnight.

256
But

The river fell overnight, but mud still covered the steps.

257
Yet

The river fell overnight, yet mud still covered the steps.

258
So

The river fell overnight, so the cleanup crew arrived.

259
Semicolon

The river fell overnight; workers reopened the lower path.

260
However

The river fell overnight; however, mud still covered the steps.

261
Or

The river fell overnight, or we can use the upper route.

262
And

The proposal was approved, and finance created the project code.

263
And — reversed

finance created the project code, and the proposal was approved.

264
But

The proposal was approved, but the start date was not confirmed.

265
Yet

The proposal was approved, yet the start date was not confirmed.

266
So

The proposal was approved, so the manager began staffing.

267
Semicolon

The proposal was approved; finance created the project code.

268
However

The proposal was approved; however, the start date was not confirmed.

269
Or

The proposal was approved, or we can delay procurement.

270
And

The interview ended, and the panel compared notes.

271
And — reversed

the panel compared notes, and the interview ended.

272
But

The interview ended, but one competency remained unclear.

273
Yet

The interview ended, yet one competency remained unclear.

274
So

The interview ended, so the recruiter prepared the next step.

275
Semicolon

The interview ended; the panel compared notes.

276
However

The interview ended; however, one competency remained unclear.

277
Or

The interview ended, or we can request another example.

278
And

The shipment arrived, and warehouse staff scanned the pallets.

279
And — reversed

warehouse staff scanned the pallets, and the shipment arrived.

280
But

The shipment arrived, but two boxes were damaged.

281
Yet

The shipment arrived, yet two boxes were damaged.

282
So

The shipment arrived, so receiving updated the inventory.

283
Semicolon

The shipment arrived; warehouse staff scanned the pallets.

284
However

The shipment arrived; however, two boxes were damaged.

285
Or

The shipment arrived, or we can hold the damaged items.

286
And

The class finished early, and students began the practice exercise.

287
And — reversed

students began the practice exercise, and the class finished early.

288
But

The class finished early, but the final question was difficult.

289
Yet

The class finished early, yet the final question was difficult.

290
So

The class finished early, so the teacher opened discussion.

291
Semicolon

The class finished early; students began the practice exercise.

292
However

The class finished early; however, the final question was difficult.

293
Or

The class finished early, or we can review the answer tomorrow.

294
And

The road reopened, and traffic started moving.

295
And — reversed

traffic started moving, and the road reopened.

296
But

The road reopened, but one lane remained blocked.

297
Yet

The road reopened, yet one lane remained blocked.

298
So

The road reopened, so the buses resumed service.

299
Semicolon

The road reopened; traffic started moving.

300
However

The road reopened; however, one lane remained blocked.

301
Or

The road reopened, or we can use the alternate route.

302
And

The prototype worked, and the designer recorded the test.

303
And — reversed

the designer recorded the test, and the prototype worked.

304
But

The prototype worked, but the button label confused users.

305
Yet

The prototype worked, yet the button label confused users.

306
So

The prototype worked, so the team scheduled another iteration.

307
Semicolon

The prototype worked; the designer recorded the test.

308
However

The prototype worked; however, the button label confused users.

309
Or

The prototype worked, or we can keep the current layout.

310
And

The article was published, and the editor shared the link.

311
And — reversed

the editor shared the link, and the article was published.

312
But

The article was published, but one caption contained a typo.

313
Yet

The article was published, yet one caption contained a typo.

314
So

The article was published, so the correction process began.

315
Semicolon

The article was published; the editor shared the link.

316
However

The article was published; however, one caption contained a typo.

317
Or

The article was published, or we can update the caption immediately.

318
And

The store opened, and customers entered from the side door.

319
And — reversed

customers entered from the side door, and the store opened.

320
But

The store opened, but the main entrance remained under repair.

321
Yet

The store opened, yet the main entrance remained under repair.

322
So

The store opened, so staff placed new signs outside.

323
Semicolon

The store opened; customers entered from the side door.

324
However

The store opened; however, the main entrance remained under repair.

325
Or

The store opened, or we can direct arrivals manually.

326
And

The snow eased, and the plows cleared the main road.

327
And — reversed

the plows cleared the main road, and the snow eased.

328
But

The snow eased, but side streets stayed icy.

329
Yet

The snow eased, yet side streets stayed icy.

330
So

The snow eased, so the school opened late.

331
Semicolon

The snow eased; the plows cleared the main road.

332
However

The snow eased; however, side streets stayed icy.

333
Or

The snow eased, or we can postpone the morning session.

334
And

The call connected, and the client described the issue.

335
And — reversed

the client described the issue, and the call connected.

336
But

The call connected, but the account ID was unavailable.

337
Yet

The call connected, yet the account ID was unavailable.

338
So

The call connected, so the agent began troubleshooting.

339
Semicolon

The call connected; the client described the issue.

340
However

The call connected; however, the account ID was unavailable.

341
Or

The call connected, or we can verify identity another way.

342
And

The experiment ended, and the researcher labeled the samples.

343
And — reversed

the researcher labeled the samples, and the experiment ended.

344
But

The experiment ended, but one measurement looked inconsistent.

345
Yet

The experiment ended, yet one measurement looked inconsistent.

346
So

The experiment ended, so the team started the review.

347
Semicolon

The experiment ended; the researcher labeled the samples.

348
However

The experiment ended; however, one measurement looked inconsistent.

349
Or

The experiment ended, or we can rerun that measurement.

350
And

The rehearsal started, and the cast completed the first scene.

Turn an example into your own writing

Keep the underlying decision or pattern, then replace the subject, evidence, relationship, constraints, and tone with details that belong to your situation. If your final line still works after swapping only one noun, it may be too close to the example.