Past Perfect - Quá khứ Hoàn thành ppsx

Past Perfect - Quá khứ Hoàn thành FORM of Past Perfect The Past Perfect has two parts: the past tense of the verb 'to have' (=had) + the past participle (PP) of the main verb. See examples below. S + had + PP I had learnt English. He had swum well. They had watched TV. S + had not+ PP I hadn't learnt English. He hadn't swum well. They had not watched TV. Had + S + PP? Had you learnt English? Had he swum well? Had they watched TV? The Past Perfect refers to an event earlier than a specific event in the past. It is used to make it clear that one event happened before another in the past. It does not matter which event is mentioned first - the tense makes it clear which one happened first. In the following example, Event A happens before Event B. You had studied English before you moved to New York Even A Event B When she got to the station, the train has left Even B Event A USEs of Past Perfect 1. to describe a completed action before an event in the past.  I did not have any money because I had lost my wallet.  Tony knew Istanbul so well because he had visited the city several times.  Had Susan ever studied Thai before she moved to Thailand?  She only understood the movie because she had read the book.  Kristine had never been to an opera before last night.  We were not able to get a hotel room because we had not booked in advance.  A: Had you ever visited the U.S. before your trip in 2006? B: Yes, I had been to the U.S. once before. 2. Past Perfect + just 'Just' is used with the past perfect to refer to an event that was only a short time earlier than the later event.  She had just left when he arrived.  They had just turned on the TV when the electricity is out. Forms of Negatives and Questions Negative sentences and questions are formed with the auxiliary verb 'had'.  She hadn't got an English certificate when she got the job.  Had it rained before you came to London? . Past Perfect - Quá khứ Hoàn thành FORM of Past Perfect The Past Perfect has two parts: the past tense of the verb 'to have' (=had) + the past participle (PP). they watched TV? The Past Perfect refers to an event earlier than a specific event in the past. It is used to make it clear that one event happened before another in the past. It does not matter. your trip in 2006? B: Yes, I had been to the U.S. once before. 2. Past Perfect + just 'Just' is used with the past perfect to refer to an event that was only a short time earlier than