This verb follows the standard English past tense rule: simply add -ed to the base form.
Forestall is regular. It follows the Standard -ed rule.
Use past time markers: "Yesterday, she forestalled to the store."
No. Use "did not forestall" (not "did not forestalled").
The verb forestall follows the standard English past tense conjugation rule. When forming the past tense, forestall becomes forestalled. This follows the Standard -ed pattern, which is one of the most common conjugation rules in English.
Understanding why forestall becomes forestalled helps with spelling and pronunciation. This verb follows the standard English past tense rule: simply add -ed to the base form.
When using forestalled 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 forestalled to the store." The past tense form does not change based on the subject — I forestalled, you forestalled, he/she forestalled, we forestalled, they forestalled.