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