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