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