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