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