Second Assignment

ASSIGNMENT No.2

Active and Passive Voice

INTRODUCTION

The passive of an active tense is formed by putting the verb to be into the same tense as the active verb and adding the past participle of the active verb. The subject of the active verb becomes the ‘agent’ of the passive verb. The agent is very often not mentioned. When it is mentioned it is preceded by ‘by’ and placed at the end of the clause.

Active: My grandfather planted this tree.

Passive: This tree was planted by my grandfather.

PASSIVE VERB TENSES                ACTIVE VOICE		PASSIVE VOICE
Present Simple	He delivers the letters.		The letters are delivered.
Past Simple	He delivered the letters.		The letters were delivered.
Future Simple	He will deliver the letters.		The letters will be delivered.
Present Continuous	He is delivering the letters.		The letters are being delivered.
Past Continuous	He was delivering the letters.		The letters were being delivered.
Going to	He is going to deliver the letters.		The letters are going to be delivered.
Present Perfect	He has delivered the letters.		The letters have been delivered.
Past Perfect	He had delivered the letters.		The letters had been delivered.
Infinitive	He has to deliver the letters.		The letters have to be delivered.
Modals	He must deliver the letters.		The letters must be delivered.

Note:

To make short answers:

We use the verb to be (am/is/are/was/were) for Present Simple, Past Simple, Present Continuous, Past Continuous and Going To questions.

We use the verb have (have/has/had) for Present Perfect and Past Perfect questions.

We use will for Future Simple questions.

USE

The Passive is used:

1. When the agent (=the person who does the action) is unknown, unimportant or obvious from the context.

Jane was shot. (We don’t know who shot her.)

This church was built in 1815. (Unimportant agent)

He has been arrested. (Obviously by the police)

2. To make more polite or formal statements.

The car hasn’t been cleaned. (more polite)

(You haven’t cleaned the car. – less polite)

3. When the action is more important than the agent, as in processes, instructions, events, reports, headlines, new items, and advertisements.

30 people were killed in the earthquake.

4. To put emphasis on the agent.

The new library will be opened by the Queen.

AGENT

To say who did the action that we are talking about, ie. to refer to the agent, we use the preposition by and the name (by Peter) , noun (by the teacher) or pronoun (by him) at the end of the sentence.

We usually only refer to the agent when it gives us some important information which otherwise would be missing from the sentence.

Our house was designed by a famous architect.

We don’t mention the agent:

1. If we don’t know who has done what we are talking about.

Our car was stolen last night. (We don’t know who stole it)

2. If we are not interested in who has done what we are talking about or it is not important to mention it.

He has been taken to hospital. (What we are interested in is the fact that he has been taken to hospital and not who has taken him.)

3. If it is easy to understand who did something without it being mentioned.

The murderer was arrested last night. (It is not necessary to mention that he has been arrested by the police because it is self-evident.)

4. If the subject of the active voice sentence is something like somebody, people, they, you, etc.

Someone broke the window. → The window was broken.

ACTIVE TO PASSIVE

To change a sentence from the active voice to the passive voice:

The object of the active voice sentence becomes the subject of the passive voice sentence.

Agatha Christie wrote this book.

This book was written by Agatha Christie.

We change the main verb of the active voice sentence into the passive voice. The tense remains unchanged.

The subject of the active voice sentence becomes the agent of the passive sentence. It is placed after the past participle and it is preceded by the preposition by.

Exercise: Change the voice of the following sentences.

1.      The cat killed the mouse.

2.      My friend sent me an invitation.

3.      They pay her an excellent salary.

4.      Shakespeare wrote ‘King Lear’.

5.      They told us a secret.

6.      They have changed the date of meeting.

7.      They are building a new ring road round the city.

8.      We will pay the gardener a lot of money.

9.      Two men were following Tom.

10.  She is telling the children a story.

11.  The report must be completed by next Friday.

12.  He lost his keys yesterday.

13.  Coffee is sold by Mohan.

14.  This book was written by an Irishman.

15.  These cars are produced in Italy by them.