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