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