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