آموزش گرامر انگلیسی پاسخ‌های کوتاه و افعال کمکی- سطح مبتدی

Unit 38 I'm not tired. I am. She isn't tired, but he is. (he is = he is tired) He likes tea, but she doesn't. (she doesn't = she doesn't like tea) In these examples, it is not necessary to repeat some words ("he is tired," "she doesn't like tea"). You can use these verbs in the same way: am/is/are I haven't seen the movie, but my sister has. (= my sister has seen the movie) was/were A: Please help me. have/has B: I'm sorry. I can't. (= I can't help you) do/does/did A: Are you tired? can B: I was, but I'm not now. (= I was tired, but I'm not tired now) will A: Do you think Megan will come and see us? might B: She might. (= she might come) should A: Are you going to study tonight? B: I should, but I probably won't. (= I should study, but I probably won't study) You cannot use 'm/s/'ve, etc. (short forms) in this way. You must use am/is/have, etc.: She isn't tired, but he is. (not ... but he's) But you can use isn't / haven't / won't, etc. (negative short forms): My sister has seen the movie, but I haven't. "Are you and Megan working tomorrow?" "I am, but Megan isn't." You can use I am / I'm not, etc. after Yes and No: "Are you tired?" "Yes, I am. / No, I'm not." "Will Bill be here tomorrow?" "Yes, he will. / No, he won't." "Is there a bus to the airport?" "Yes, there is. / No, there isn't." We use do/does for the simple present (see Units 6–7): I don't like hot weather, but Sue does. (= Sue likes hot weather) Sue works hard, but I don't. (= I don't work hard) "Do you enjoy your work?" "Yes, I do." We use did for the simple past (see Unit 12): A: Did you and Chris like the movie? B: I did, but Chris didn't. (= I liked it, but Chris didn't like it) "I had a good time." "I did, too." (= I had a good time, too) "Did it rain yesterday?" "No, it didn't."