module 2 THE PASSIVE Remember that the passive, which is very common in ESP (English for Specific Purposes), is formed with the different tenses of to be and the past participle of the main verb. Bill Gates Microsoft founded was founded Microsoft by Bill Gates GRAMMAR The object of the active verb becomes the subject in the passive sentence. The verb becomes passive and the tense is determined by the verb to be. The subject becomes the doer , it is preceded by the preposition by and it is omitted if it is not necessary to the comprehension. TENSES ACTIVE FORM PASSIVE FORM Simple present They buy computers every year Computers are bought every year Present continuous They are buying a computer A computer is being bought Past simple He bought a computer yesterday A computer was bought yesterday Present perfect They have bought some computers Some computers have been bought Past continuous She was buying a computer A computer was being bought Past perfect He had bought a computer A computer had been bought Will future They will buy some computers Some computers will be bought Be going to Tom is going to buy a computer A computer is going to be bought by Tom Modal verbs They should buy some computers Some computers should be bought Infinitive They used to buy computers Computers used to be bought The passive form can be made using the indirect object of the active sentence as the new subject of the passive sentence (with verbs that can have two objects). My parents gave me a CD I was given a CD by my parents. A CD was given to me by my parents (less common form). Put the following sentences into the passive form. a. b. c. d. e. f. g. h. i. j. 92 They are selling monitors at a reduced price. You will have to pay a lot of money for the new software. She has sent Tom an e-mail. He was writing an e-card for Mary s birthday. You must finish your report by the end of the week. They use pen-drives to store data. You can download music in mp3 format. They require sophisticated car alarms nowadays. The computer is processing data. You should save files on the hard disk.