CHANGE OF VOICE IN CASE OF AUXILIARY VERBS/MODAL VERBS (PRESENT TENSE)

 

AUXILIARY VERBS IN PRESENT TENSE

At the time of changing active voice into passive voice, subject and object are interchanged.  Auxiliary verbs ‘will’, ‘shall’, ‘may’, ‘might’, ‘can’, ‘could’, ‘should’, ‘would’, ‘must’, ‘ought to’, ‘used to’ are respectively replaced with ‘will be’, ‘shall be’, ‘may be’, ‘might be’, ‘can be’, ‘could be’, ‘should be’, ‘would be’, ‘must be’, ‘ought to be’, ‘used to be’. Using 3^rd form of verb, subject follows ‘by’.

1.  Affirmative:

Active voice  : Subject + Auxiliary verbs + 1st form of Verb + object.

Passive voice: Object + Auxiliary verbs + be + 3rd form of verb + by + Subject.

a.  Active voice     :  We should help the poor.

              Passive voice   :  The poor should be helped by us.

b.  Active voice     :  You must respect your parents.

              Passive voice   :  Your parents must be respected by you.

2.  Negative:

Active voice  : Subject + Auxiliary verbs + not + 1st form of Verb + object.

Passive voice: Object + Auxiliary verbs+ not +be +3rd form of verb+ by + Subject.

a.  Active voice     :  She could not finish the work in time.

              Passive voice   :  The work could not be finished by her in time.

b.  Active voice     :  I cannot read this letter.

              Passive voice   :  This letter cannot be read by me.

3.  Interrogative:

Active voice  : Auxiliary verbs + subject + 1st form of Verb + object?

Passive voice: Auxiliary verbs + object + be + 3rd form of verb + by + Subject?

a.  Active voice     :  May we help you against your enemies?

              Passive voice   :  May you be helped by us against your enemies?

b.  Active voice     :  What can I do for you?

              Passive voice   :  What can be done by me for you?