The infinitive forms of verbs are listed as entry words and the past, past participle, and present participle forms of irregular verbs are usually given within the entry. For example, if you were to look up the word draw , you would find drew, drawn, and drawing . While doing the exercises in Lesson Thirteen you may want to keep your text open to pages 680-681. These charts will be a quick, easy reference and may help you complete the lesson more quickly. As you do this lesson you will also need to pay attention to verb tense .
Verbs change form to show the time of the action or idea that they express.
The time indicated by a verb's form is called its tense . Before I graduate, I will have run hundreds of miles. Voice is another particular feature of verbs that can cause confusion. A verb in the active voice expresses an action performed by the subject. A verb in passive voice expresses an action done to its subject.