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