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