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