A sentence
in the active form can be changed into the passive form. Similarly a sentence
in the passive form can be changed into the active form.
·
Active:
Brutus stabbed Caesar.
·
Passive:
Caesar was stabbed by Brutus.
·
Active:
The boy killed the spider.
·
Passive:
The spider was killed by the boy.
·
Active:
The teacher punished the boy.
·
Passive:
The boy was punished by the teacher.
·
Active:
His behavior vexes me.
·
Passive:
I am vexed by his behavior.
Notes:
When it is clear who the agent (doer of the action) is, it is not necessary to mention it in the passive form. In fact, this omission often makes the sentence look neater.
·
Active:
The audience loudly cheered the Mayor’s speech.
·
Passive:
The Mayor’s speech was loudly cheered (by the audience).
·
The active
voice is preferred when the agent (i.e. the person who performs the action) is
to be made prominent. The passive voice is preferred when the agent is unknown
or when we do not care to mention the agent.
The
passive form is preferred in the following sentences because the agent is
either unknown or unimportant.
·
Passive:
My pocket has been picked.
·
Active:
Somebody has picked my pocket.
·
Passive:
I shall be obliged to go.
·
Active:
Circumstances will oblige me to go.
·
Passive:
Promises should be kept.
·
Active:
One should keep one’s promises.
ACITVE AND PASSIVE VOICE
A
sentence can be written in either active voice or passive voice without
changing the meaning of it.
When
the verb in a sentence shows that the subject is the doer of the action, the
verb is in the active voice.
Examples:
1.
Children painted
these pictures. (Children – subject; painted – verb; pictures – object)
2.
James writes a
letter (James – subject; writes – verb; letter – object)
When
the verb in a sentence shows that the subject is not the doer of the action,
the verb is in the passive voice. (Generally you will find “by” in the
sentence. If “by” is not there, you can put a question “Who?”, you will get an
answer.)
Examples:
- These pictures were painted by
children: (pictures – subject; painted – verb; children - object
- A letter is written by James
(letter – subject, written – verb; James – Object)
Rules
for conversion from Active to Passive Voice
- The subject and object are
interchanged
- The preposition BY is added before
the object
- The verb is changed to past
participle (3rd form of
verb)
- A new auxiliary is added to the
Past Participle form of verb.
- If the subject or the object in an
active voice sentence is a pronoun (I, we, you, he, she, they, it) it
changes: (I-me; we-us; you-you; he-him; she-her; they-them; it-it) and
vice-versa. e.g. I wrote a letter –
A letter was written by me. The prefect does keep accusing me daily – I am
being accused by the prefect daily.
- If the subject in the active voice
sentence is unknown or unimportant or obvious, by + object is omitted. We
make butter from cow’s milk. Butter is made from cow’s milk.
- If the verb in the active voice
sentence has a modal in it, the verb is changed to – modal + be + the past
participle. e.g. Rajesh can lift
this box. This box can be lifted by Rajesh. We should obey the rules. The
rules should be obeyed.
- When there are two objects, only
one object is interchanged. The second object remains unchanged. (He told
me a story – He- subject; me – object 1; a story – object 2) ( I was told
a story by him; A story was told to me by him)
The
table below shows how the verb is changed into its passive voice form in
different tenses.
Tense
|
Active Voice
|
Passive Voice
|
The simple present
|
He eats an apple
|
An apple is eaten by him.
|
The present continuous
|
He is eating an apple.
|
An apple is being eaten by him.
|
The present perfect
|
He has eaten an apple.
|
An apple has been eaten by him.
|
The simple past
|
He ate an apple.
|
An apple was eaten by him.
|
The past continuous
|
He was eating an apple
|
An apple was being eaten by him
|
The past perfect
|
He had eaten an apple
|
An apple had been eaten by him
|
The simple future
|
He will eat an apple
|
An apple will be eaten by him.
|
The Future continuous
|
He will be eating an apple.
|
An apple will have been eaten by him.
|
The Future in the past
|
He would have eaten an apple
|
An apple would have been eaten by him
|
Note:
Some of the sentences like – sentences constructed using auxiliary verbs (Tashi is a good boy); perfect continuous tenses ( in all the three time periods
– Present, Past, Future) (My room mate has been copying my homework) and
intransitive verbs ( I go to temple or she has gone to the market) cannot be
converted into passive form .
TENSES
|
ACTIVE FORM
|
PASSIVE FORM
|
SIMPLE PRESENT
OR
PRESENT INDEFINITE.
·
Used to
present a habit or routine.
|
·
S + V1 OR V5 + O + E
(extension)
·
I + teach (V1) + English.
·
He + teaches (V5) + English.
Use of V1& V5
·
V1 if subject is I, we, you, they,
or any plural noun and V5 if subject is he, she, it, or a singular
noun.
|
·
O + A.V (is, am, are) + V3 + by +
agent.
·
English + is + taught + by + me.
·
English + is + taught + by + him.
·
Subject changes into agent.
·
Pronoun subjects change into agent by changing
its form into object pronoun i.e. ‘me’ for ‘I’ and ‘him’ for ‘he’
·
If the subject is a name, it remains the same
|
PRESENT CONTINUOUS
OR
PRESENT IMPERFECT.
·
Used to show continuity of action in present
context.
|
·
S + A.V.(is, am, are) + V4 + O + E
·
I + am + writing + a letter.
·
He + is + writing + a letter
Use of A.V.(Auxiliary Verbs)
I
am
He, she, it & singular noun is
We, you, they, & plural noun are
|
·
O+ A.V(is, am, are) + being + V3 +
by + agent
·
A letter + is + being + written + by + me.
·
A letter + is + being + written + by + him.
|
PRESENT PERFECT.
·
Used to present the action that has completed
just before some time or immediate past.
|
·
S + A.V.(have, has) + V3 + O + E
·
I + have + made + a nice chair
·
He + has + solved + the problem
Use of ‘have’ and ‘has’
·
‘has’ is used with he, she, it and a singular
noun; with other subjects we use ‘have’ as A. V.
|
·
O + A.V.(have, has) + been + V3 +
by + agent
·
A nice chair + has + been + made by + me.
·
The problem +has +been +solved + by + him
|
PRESENT PERFECT CONTINUOUS.
·
Used to represent an action that has started
before and is still going on.
|
·
S + A.V.(have, has) + been + V4 + O
+ since/for + time.
·
I have been playing football since childhood.
·
He has been practicing mask dance for fifteen
years.
Use of ‘since’ and ‘for’
Since – used for point of time.
For – used for a period of time.
|
NO PASSIVE FORM.
|
SIMPLE PAST
OR
PAST INDEFINITE
Used to express
habit or routine in past context.
|
·
S + V2 + O + E (extension)
·
I + taught (V2) + English.
·
He + taught (V2) + English.
|
·
S + A.V (was, were) + V3 + by +
agent.
·
English + was + taught + by + me.
·
English + was + taught + by + him.
|
PAST CONTINUOUS
OR
PAST IMPERFECT
Used to show
continuity of action in the past context.
|
·
S + A.V.(was, were) + V4 + O + E
·
I + was + writing + a letter.
·
He + was + writing + a letter
Use of A.V.
I, He, she, it & singular noun was
We, you, they, & plural noun were
|
·
O+ A.V(was, were) + being + V3 + by
+ agent
·
A letter + was + being + written + by + me.
·
A letter + was + being + written + by + him.
|
PAST PERFECT
Used to show a
completed action in the past context or something that was done long time
back.
|
·
S + A.V.(had) + V3 + O + E
·
I + had + made + a nice chair
·
He + had + solved + the problem
|
·
O + A.V.(had) + been + V3 + by +
agent
·
A nice chair + had + been + made by + me.
·
The problem +had +been +solved + by + him
|
PAST PERFECT CONTINUOUS
Used to show an
action that had started before the said time and was going on at the said
point of time in the past.
|
·
S + A.V. (had) + been + V4 + O +
since/for + time.
·
I have been playing football since childhood.
·
He has been practicing mask dance for fifteen
years.
|
NO PASSIVE FORM.
|
SIMPLE FUTURE
OR
FUTURE INDEFINITE
Used to show the
intention of doing something as a part of routine or on regular basis in
future.
|
·
S + shall/will + V1 + O + E
·
I + shall + teach + English.
·
He + will + teach + English.
Use of ‘shall’ & ‘will’
I, we, you, they and plurals shall
He, she, it and singulars will
NOTE
In modern English use of ‘will’ is
accepted with all the subjects.
|
·
O + shall/will + be + V3 + by +
agent.
·
English + will + be + taught + by + me.
·
English + will + be + taught + by + him.
|
FUTURE CONTINUOUS
OR
FUTURE IMPERFECT
Used to present an
action that will be going on at the said point of time in future.
|
·
S + shall/will + be + V4 + O + E
·
I + shall + be + writing + a letter.
·
He + will + be + writing + a letter
Use of A.V.
I, He, she, it & singular noun was
We, you, they, & plural noun were
|
NO PASSIVE FORM.
|
FUTURE PERFECT
Used to express an
action that will have finished or completed by the said point of time in
future.
|
·
S + shall/will + have + V3 + O + E
·
I + shall + have + made + a nice chair + by
the next week
·
He + will + have + solved + the riddle + by
evening.
|
·
O + shall/will + have + been + V3 +
by + agent
·
A nice chair + will + have + been + made by +
me + by the next week.
·
The riddle +will + have +been +solved + by +
him + by evening.
|
FUTURE PERFECT CONTINUOUS
Used to express an
action that will have started before the said point of time in future and
will be going on at the said point of time in future.
|
·
S + shall/will + have + been + V4 +
O + for/from + time.
·
I shall have been playing football from tomorrow.
·
He will have been practicing mask dance for
fifteen years.
|
NO PASSIVE FORM.
|
Note: Whenever it is evident who the
agent (i.e., doer of the action) is, it is unnecessary to mention him in the passive form, and this omission gives a neater turn to
the sentence. Thus in the last example the agent is not mentioned in the passive form because
only those who heard the speech could have cheered it.