1
The prototype is inexpensive, but it is difficult to repair.
8 Coordinating Conjunction Examples
Use these examples to study structure, specificity, tone, and variation. They are demonstrations—not claims about a real person or organization unless the example itself makes that explicit.
Before you copy
What to notice in the examples
Good coordination joins ideas of comparable grammatical weight, uses punctuation appropriate to what is being joined, and chooses a conjunction whose logical relationship matches the writer’s meaning.
- Identify the two elements being joined.
- Check that the conjunction expresses addition, contrast, alternative, result, or another intended relation.
- Use a comma before the conjunction when it joins two independent clauses in standard prose.
- Maintain parallel grammatical form across coordinated items.
2
We can revise the schedule or reduce the scope.
3
The alert fired, so the on-call engineer checked the logs.
4
She reviewed the figures and corrected two labels. No comma is needed merely because and appears.
5
The sample was small, yet the pattern appeared in every subgroup.
6
Neither the old script nor the replacement handled empty files correctly.
7
He did not call, nor did he send a message.
8
The team wanted speed, but the client valued auditability more.
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.