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