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