Tham khảo tài liệu 'present perfect - hiện tại hoàn thành', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Present Perfect - Hiện tại Hoàn thành FORM of Present Perfect The Present Perfect has two parts The verb to have and the Past Participle PP of the main verb have has PP . See examples below. S have has PP I have learnt English. He has swum well. They have watched TV. I haven t learnt English. S have has not PP He hasn t swum well. They have not watched TV. Have you learnt English 0Have Has S PP Has he swum well Have they watched TV The Present Perfect refers to an action happened in the past but it is still related to the present. The time of the action is before now but not specified and we are often more interested in the result than in the action itself. USEs of Present Perfect 1. to describe an action or situation that started in the past and continues in the present I have lived in New York for nine years. We have been here since Friday. He has played football since he was a child. 2. to describe an action performed during a period that has not yet finished James has not finished his homework yet. Susan hasn t mastered Japanese but she can communicate. Bill has still not arrived. The rain hasn t stopped. 3. to express a repeated action in an unspecified period between the past and now I have seen that movie twenty times. I think I have met him once before. There have been many earthquakes in California. People have traveled to the Moon. People have not traveled to Mars. Have you read the book yet Nobody has ever climbed that mountain. A Has there ever been a war in the United States B Yes there has been a war in the United States. 4. to express an action that was completed in the very recent past expressed by just and recently . He has just broken his leg Recently I haven t seen any changes in petrol price. Have you just had your hair cut 5. An action when the time is not important it is expressed as an experience I have been to France. This sentence means that you have had the experience of being in France. Maybe you have been there once or several times. I .
