Nouns ending in -s, -x, -z, -ch, or -sh add -es to form the plural. This makes the word easier to pronounce.
Fetus is regular. It follows the -es Addition rule.
Use plural verbs: "The fetuses are ready" (not "is ready").
Yes. The plural fetuses is standard across all English variants.
The word fetus follows the standard English pluralization rule. When forming the plural, fetus becomes fetuses. This follows the -es Addition pattern, which is one of the most common plural rules in English.
Understanding why fetus becomes fetuses helps with spelling and pronunciation. Nouns ending in -s, -x, -z, -ch, or -sh add -es to form the plural. This makes the word easier to pronounce.
When using fetuses in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The fetuses are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.