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