active and passive voice interchange of active and passive voice 1. first or second form of verb 2. auxiliary verb 'be' + -ing form of verb 3. have/has/had + past participle 4. present/future modals + verb word 5. past modals + past participle 6. verb + preposition 7. main verb + object + complement 8. main verb + object + object 9. have/has/had + infinitive (to + verb) 10. auxiliary verb 'be' + infinitive (to + verb) 11. verb + object + infinitive (without 'to') 12. there + verb 'be' + noun + infinitive 13. interrogative sentences 14. imperative sentences 15. principal clause + that + noun clause (object) 16. verb followed by --ing form or an infinitive 17. use of prepositions 18. the passive with get 19. middle voice exercise -- 01 exercise - 02 exercise - 03 Sample This: VOICE - Definition -- Voice refers to the form of a verb that shows whether the subject of a sentence performs the action or is affected by it. ACTIVE VOICE - Definition -- The form of a verb in which subject is the person or thing that performs the action. Example: They finished the work. [subject -- "they", verb -- "finished", object -- "work"] In this sentence, the subject (they) acts on the object (work). Other Examples: The teacher praises him. She posted the letter. I buy new books. We will celebrate his birthday. PASSIVE VOICE - Definition -- The form of a verb in which subject is affected by the action of the verb. Important Note -- The object of the active voice becomes the subject in the passive voice. Example: The work was finished by them. [subject -- "work", passive verb -- "was finished", object -- "them"] In this example, the subject (work) is not the doer; it is being acted upon by the doer 'them') Other Examples: He is praised by the teacher. The letter was posted by her. New books are bought by me. His birthday will be celebrated by us. WHEN TO USE PASSIVE VOICE -- (1). You should use passive voice when you do not know the active subject. (2). When you want to make the active object more important. (3). When active subject is obvious. (4). When you want to emphasize the action of the sentence rather than the doer of the action. (5). Passive voice is frequently used to describe scientific or mechanical processes. (6). Passive voice is often used in news reports. (7). When active voice does not sound good. (8). When you want to make more polite or formal statements. (9). You can use passive voice to avoid responsibility. (10). You can also use passive voice for sente