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