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