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