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