https://myenglishgrammar.com/list/singular-plural-by-adding-es-to-nouns-ending-in-ch-s-sh-ss-x-and-z/
Singular & Plural - By adding -es to nouns ending in -ch, -s, -sh, -ss, -x, and -z (List) - My...
Mar 11, 2026 - In English, while many nouns adopt a simple
singular pluraladdingesnouns