Nouns ending in -a (often Latin or scientific) add -e to form the plural.
Ira is regular. It follows the -ae Addition rule.
Use plural verbs: "The irae are ready" (not "is ready").
Yes. The plural irae is standard across all English variants.
The word ira follows the standard English pluralization rule. When forming the plural, ira becomes irae. This follows the -ae Addition pattern, which is one of the most common plural rules in English.
Understanding why ira becomes irae helps with spelling and pronunciation. Nouns ending in -a (often Latin or scientific) add -e to form the plural.
When using irae in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The irae are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.