This verb follows the standard English past tense rule: simply add -ed to the base form.
Teeth is regular. It follows the Standard -ed rule.
Use past time markers: "Yesterday, she teethed to the store."
No. Use "did not teeth" (not "did not teethed").
The verb teeth follows the standard English past tense conjugation rule. When forming the past tense, teeth becomes teethed. This follows the Standard -ed pattern, which is one of the most common conjugation rules in English.
Understanding why teeth becomes teethed helps with spelling and pronunciation. This verb follows the standard English past tense rule: simply add -ed to the base form.
When using teethed 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 teethed to the store." The past tense form does not change based on the subject — I teethed, you teethed, he/she teethed, we teethed, they teethed.