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