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