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