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