OXFORD PRACTICE GRAMMAR-17 sau đây là giáo trình lý thuyết tiếng anh và bài tập áp dụng từ cơ bản đến nâng cao , nhằm giúp các bạn có thể tự mình ôn tập và củng cố thêm về nền tảng kiến thức môn Anh văn , tự tin đạt kết quả tốt trong kỳ thi ngoại ngữ | OXFORD PRACTICE GRAMMAR 17 PRESENT PERFECT CONTINUOUS OR SIMPLE A I have been doing or I have done Mike has been repairing the car. We use the present perfect continuous for an action happening over a period of time see Unit 16 . We are thinking of Mike doing the repair and getting oil on his hands. Here are some more examples. OVER A PERIOD have been doing We ve been touring Scotland. A strong wind has been blowing all day. Vicky is out of breath. She s been running. I ve been writing an essay. I m tired now. We normally use the continuous form when we say how long. Rachel has been playing music all day. I ve been ironing shirts since ten o clock. How long have you been learning to drive Mike has repaired the car. We use the present perfect simple for a complete action see Unit 11 . We are thinking of the finished repair and the result of the repair - that the car is all right now. COMPLETE have done We ve finished our tour of Scotland. The wind has blown a tree over. Vicky is here at last. She s run all the way. I ve written an essay. I can hand it in now We normally use the simple form when we say how much many. Rachel has played at least twenty CDs. I ve ironed eight shirts. How many driving lessons have you had B States and actions We cannot normally use the continuous form with a state verb see Unit 7 . I ve known the secret for a long time NOT I ve been knowing the secret. My parents have had this car for about ten years. We ve never been very happy here I m afraid. Live and work have a job can be continuous or simple with no difference in meaning. We ve been living here since 1992. OR We ve lived here since 1992. Sarah has been working for the company for three years now. OR Sarah has worked for the company for three years now. 17 EXERCISES 1 I have been doing or I have done A Look at these conversations and put in the correct form of the verb. Use the present perfect continuous or simple. Sarah I feel really tired. Mark It s because you ve been doing you .
