This noun follows the standard English plural rule: simply add -s to the singular form.
Since is regular. It follows the Standard -s rule.
Use plural verbs: "The sinces are ready" (not "is ready").
Yes. The plural sinces is standard across all English variants.
The word since follows the standard English pluralization rule. When forming the plural, since becomes sinces. This follows the Standard -s pattern, which is one of the most common plural rules in English.
Understanding why since becomes sinces helps with spelling and pronunciation. This noun follows the standard English plural rule: simply add -s to the singular form.
When using sinces in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The sinces are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.