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