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