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