This verb follows the standard English past tense rule: simply add -ed to the base form.
Tooth is regular. It follows the Standard -ed rule.
Use past time markers: "Yesterday, she toothed to the store."
No. Use "did not tooth" (not "did not toothed").
The verb tooth follows the standard English past tense conjugation rule. When forming the past tense, tooth becomes toothed. This follows the Standard -ed pattern, which is one of the most common conjugation rules in English.
Understanding why tooth becomes toothed helps with spelling and pronunciation. This verb follows the standard English past tense rule: simply add -ed to the base form.
When using toothed in writing, remember that it functions as a past tense verb and typically appears with time markers like yesterday, last week, or ago. For example: "Yesterday, she toothed to the store." The past tense form does not change based on the subject — I toothed, you toothed, he/she toothed, we toothed, they toothed.