Tham khảo tài liệu 'basic english usage exercises_7', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 141 186 Infinitive Simple past Past participle say sei said sed said sed see saw seen sell sold sold send sent sent set set set shake shook shaken shine Jain shone Jon shone Jon shoot shot shot show showed shown shut shut shut sing sang sung sit sat sat sleep slept slept smell smelt smelled smelt smelled speak spoke spoken spell spelt spelled spelt spelled spend spent spent stand stood stood steal stole stolen stick stuck stuck strike struck struck swim swam swum take took taken teach taught taught tear tore torn tell told told think thought thought throw threw thrown understand understood understood wake woke woken wear wore worn win won won write wrote written 2 Verbs that are easy to confuse Infinitive Simple past Past participle fall fell fallen feel felt felt fill filled filled lay put down flat laid laid lie be down lay lain lie say things that are not true lied lied leave go away left left live be alive be at home lived lived raise put up raised raised rise go up rose risen 187-188 142 187 it preparatory subject When the subject of a sentence is an infinitive or a clause this does not usually come at the beginning. We prefer to start the sentence with the preparatory subject it. It s nice to be with you. To be with you is nice is possible but unusual. It s probable that we ll be a little late. 1 We often use this structure in sentences with be adjective. I It 4- be adjective Ìnfinitive I It s hard to live on my salary. It is possible to go by road or rail. It is important to book in advance. I It be adjective clause It s possible that I ll be here again next week. It s surprising how many unhappy people there are. It wasn t clear what she meant. Is it true that your father s ill 2 We also use the structure to talk about the time that things take. See 338. It took me months to get to know her How long does it take to get to London from here7 3 lean be a preparatory subject for an -Ing form. This happens especially with it s worth see 368 and it s no good use.
