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