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