... Lesson 10 Review of Verbs, Nouns,and Pronouns REVIEW OF VERBS, NOUNS, AND PRONOUNS 61 To learn what part of speech a word is, ask yourself: How is the word ... PARTS OF SPEECH REVIEW OF VERBS, NOUNS, AND PRONOUNS 63When to add S:A. To most nouns: book—books. (See Rule 1, page 28.)A–X. Exceptions to A:man—men foot—feet mouse—micewoman—women tooth—teeth ... 33.)When to add es:E–X. Exceptions to E:potato + es = potatoes echo + es = echoestomato + es = tomatoes veto + es = vetoesF. To nouns ending in s: class + es = classessh: wish + es = wishesch:...