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