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