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