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