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