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