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