Passive voice of Modal Verb Structure 1 : S + Modal Verb + Verb infinitive ( Vinf ) Refers to the action happening in the present or future . * S+modal verb + be +P2. EX : I must do this homework . >>This homework must be done . Passive of Modal VERB Structure 2 : S+modal verb + be +P2 Refers to the action which needed in the past or should have happened but did not . Or guess what actions must have occurred in the past. Passive: S + modal Verb + have been +P2 SPECIAL CASES 1 / Its your duty to + Vinf Passive : Youre supposed to+Vinf EX : Its your duty to make tea today . -> You are supposed to make tea today . 2 / Its impossible to+Vinf Passive : S + cant + be + P2 EX : Its impossible to solve this problem . -> This problem cant be solve. SPECIAL CASES 3/ Its necessary to + Vinf Passive : S + should/ must + be +P2 EX: Its necessary for you to type this letter. -> This letter should/ must be typed by you. 4/ Mệnh lệnh thức + Object. Passive: S + should/must + be +P2. EX: Turn on the lights! -> The lights should be turned on. Passive voice of the eighth special verbs Verbs : suggest , require , request , order , demand , insist (on) , recommend . S + suggest/ recommend/ order/ require... + that + clause. ( In this: clause = S + Vinf + O ) Passive: It + was/ will be/ has been/ is... + P2( of 8 verb) + that + st + be + P2. ( In this: be doesn’t change vì động từ trong clause ở câu chủ động ở dạng Vinf) EX: He suggested that she buy a new car. >> It was suggessted that a new car be bought.
Posted on: Wed, 26 Mar 2014 14:49:45 +0000
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