This document discusses singular and plural nouns. It explains that nouns name people, places or things and can be singular to name one person/thing or plural to name more than one. Regular nouns follow patterns like adding 's' or 'es' to make plurals, but some nouns are irregular with different plurals like 'child' and 'children'. The document provides many examples of regular and irregular noun plurals and advises to memorize the spelling of irregular plurals. It also notes that a few nouns have the same singular and plural form.