Verbs ending in a consonant followed by -y change the -y to -ied in the past tense form.
Qualify is regular. It follows the -ied Conversion rule.
Use past time markers: "Yesterday, she qualified to the store."
No. Use "did not qualify" (not "did not qualified").
The verb qualify follows the standard English past tense conjugation rule. When forming the past tense, qualify becomes qualified. This follows the -ied Conversion pattern, which is one of the most common conjugation rules in English.
Understanding why qualify becomes qualified helps with spelling and pronunciation. Verbs ending in a consonant followed by -y change the -y to -ied in the past tense form.
When using qualified 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 qualified to the store." The past tense form does not change based on the subject — I qualified, you qualified, he/she qualified, we qualified, they qualified.