Regular and Irregular Plural Nouns | Editor’s Manual
https://editorsmanual.com/articles/regular-and-irregular-plurals23.01.2020 · Regular plurals of nouns are formed by adding -s, -es, or -ies to the singular (e.g., girl s, virus es, dut ies).Irregular plurals also often follow a pattern, originating sometimes in the parent language or rules of older forms of English (child ren, criter ia, oas es, g ee se, m ice, ind ices).Some nouns have both regular and irregular plurals (index es /ind ices, formula s /formul …