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