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