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