This verb follows the standard English past tense rule: simply add -ed to the base form.
Refill is regular. It follows the Standard -ed rule.
Use past time markers: "Yesterday, she refilled to the store."
No. Use "did not refill" (not "did not refilled").
The verb refill follows the standard English past tense conjugation rule. When forming the past tense, refill becomes refilled. This follows the Standard -ed pattern, which is one of the most common conjugation rules in English.
Understanding why refill becomes refilled helps with spelling and pronunciation. This verb follows the standard English past tense rule: simply add -ed to the base form.
When using refilled 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 refilled to the store." The past tense form does not change based on the subject — I refilled, you refilled, he/she refilled, we refilled, they refilled.