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