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