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