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