SSC IMD SA 2017 – Question 69

In the following question, a sentence has been given in Active / Passive voice. Out of the four alternatives suggested, select the one which best
expresses the same sentence in Passive / Active voice.
The doctor shall have examined ten patients by 10 O’clock.

• Ten patients will have being examined by 10 O’clock by the doctor.
• Examination of ten patients was being done by the doctor by 10 O’clock.
• Ten patients will have been examined by 10 O’clock by the doctor.
• Examination of ten patients shall have been done by the doctor by 10 O’clock.

Detailed Explanation:

The correct passive voice sentence is c) Ten patients will have been examined by 10 O’clock by the doctor.

• Tense & Voice Rules:
  • The active sentence is in the Future Perfect Tense: Subject + shall/will + have + V3 + Object + Time Expression.
  • Active: The doctor (Subject) + shall have examined (Verb) + ten patients (Object) + by 10 O’clock.
  • The passive voice rule for Future Perfect Tense is:
    Object + will/shall + have been + V3 + by Subject + Time Expression
• Step-by-Step Conversion:
  • The object “ten patients” becomes the new subject.
  • With a third-person plural subject (ten patients), standard auxiliary is will.
  • The verb becomes will have been examined.
  • The agent by the doctor and time adverbial by 10 O’clock are appended.
• Why other options are incorrect:
  • Option a: Uses “will have being”, which is grammatically incorrect.
  • Option b: Changes the tense to past continuous (was being done).
  • Option d: Unnecessarily alters the main verb from examined to done.

Hence, Option c is the correct answer.