THE PASSIVE FORM A/ FORM : Ex: My house was built by my father. S + Be + P.P + O (agent) B/ Passive Transformation Active Passive 1 /The present simple tense: Active: S +V(es ,s) +O + place + time . S + is /am/are +P.P(ed,III) +place +by O +time. Ex: My mother cleans this room everyday. This room is cleaned by mother everyday. 2 / The present progressise tense: Ex: They are building a new swimming-pool A new swimming-pool are being built (by them) 3 / The present perfect tense: Ex: They have the discovered oil at the North Pole Oil has been discovered at the North Pole (by them) 4 / The past simple tense: Ex: Lan and her pen pal visited many beautiful place in Ha Noi. Many beautiful place were visited in Ha Noi by Lan and her pen pal. 5 / The past progressive tense. S + BE + P.P +( by + agent ) S + V + O S + Be + P.P +by + agent Active: S + IS /AM /ARE + V-ing + O Passive: S + IS /AM /ARE + BE-ing + P.P +by(…) Active: S + have /has +P.P + O Passive: S +have /has +been + p.p +by (…) Active: S + V(ed,II) + O Passive: S + was /were +P.P +by (…) Ex: They washed our clothes with a new detergent. Our clothes were washed with anew detergent. 6 / The past perfect tense. Ex: They had destroyed all the documents when we arrived. All the documents had been detroyed when we arrived. 7 / The future simple tense. Ex: The Queen will open the new hospital. The new hospital will be opened by the Queen. 8 / Be going to. Ex: They are going to bake the bread. The bread is going to be baked. 9 / Modal verbs. Can, could, should, may,might,would, ought to,have to, must, had to Ex: The children must go to the school. The school must be gone to by the children. 10 / Lưu ý: Các chủ ngữ là : I ,You ,He ,She ,It ,We ,They ,People ,Someone, Somebody,trong câu chủ động thường được bỏ,không dùng trong câu bò động. Ex: Someone left this purse in a classroom. This purse was left in a classroom. Active: S + was / were +V-ing +O Passive: S + was / were + being + P.P +by(….) Active: S + had + P.P +O Passive: S + had +been + P.P + by(….) Active: S + will + V + O Passive: S + will + be +P.P +by (…) Active: S + be going to +V + O Passive: S + be going to + be +P.P + by (…) Active: S + modal verbs + V + O Passive: S + modal verbs + be + P.P A / Trang từ chỉ cách thức thường đứng giữa be và Quá khứ phân từ. Ex: The scientists have studied the problem carefully The problem has been carefully studied by the scientists B / Trạng từ hoặc cụm trạng từ chỉ nơi chốn đứng trước (by agent ) Ex: The Police found him in the forest. He was found in the forest by the police. C / Trạng từ hoặc cụm trạng từ chỉ thời gian đứng sau ( by agent) Ex: Alexander G. Bell invented the telephone in 1876 The telephone was invented by Alexander G. Bell in 1876 . THE PASSIVE FORM A/ FORM : Ex: My house was built by my father. S + Be + P.P + O (agent) B/ Passive Transformation Active Passive 1 /The present. + O Passive: S + IS /AM /ARE + BE-ing + P.P +by(…) Active: S + have /has +P.P + O Passive: S +have /has +been + p.p +by (…) Active: S + V(ed,II) + O Passive: