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