Sometimes these auxiliaries are indicative, and sometimes they are subjunctive; as, 1. He came, but he could not do the work. (Indicative.) 2. If he were here, he could not do the work. (Subjunctive.) Such combined forms as may write, might write, etc., are sometimes called Potential Forms. They are called potential present, potential past, potential present perfect and potential past perfect. Mention the verbs in the following sentences, tell what each expresses, and of what parts it is composed : I. For men may come, and men may go. 2. He could enliven every conversation with an anecdote, and conclude it with a moral. 3. Have patience, gentle friends; I must not read it. 4. One may acquire the habit of looking upon the sunny side of things, or he may acquire the habit of looking upon the gloomy side. 5. He could not have received the message. 6. We should be as careful of our words as of our actions. 7. He could speak readily in three or four languages. 8. "We must fight!" exclaimed the speaker. 9. You might have seen the guests sitting around the table. 10. No other poet could have painted those scenes in more strong and lively colors. WRITTEN EXERCISES. I. Write sentences, using the present tense of may, can, or must, with the present infinitive of II. Write sentences, using the past tense of may, can, or shall, with the present infinitive of Write sentences, using may, can, or must, with the perfect Write sentences, using might, could, or should, with the per To conjugate a verb is to give its different forms; thus, |