... 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 used in its sen- tence? For example, in sentence ... physics. Nouns can be tricky, too. They change form depending on how they are used—as sin- gular, plural, or possessive nouns. On the next page is a summary of the rules for forming plurals of nouns. ... SPEECH EXERCISE 7. List 10 proper nouns and 10 common nouns from the passage. PROPER COMMON 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Recall that in less formal writing and conversation, contractions may...