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