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