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