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