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