20 questions from actual SSC CHSL papers · all shown free · click option to reveal solution
Active Voice: The subject performs the action
'Ram writes a letter.' Passive Voice: The action is performed on the subject
'A letter is written by Ram.' The key difference is WHO is doing the action versus WHO is receiving the action
Object of active voice becomes subject of passive voice 2. Subject of active voice becomes object with 'by' in passive voice 3. Verb changes to 'be + past participle' form 4. Tense remains the same in both voices
Active to Passive Transformation:
Tense-wise Formula:
Direct conversion (Active to Passive or vice versa)
Identifying correct passive form from options
Error detection in voice usage
Fill in the blanks with correct voice form
#1 - THE 'BY' TEST: If you can add 'by someone' at the end of the sentence meaningfully, it's likely passive voice. If it sounds odd, it's active voice. SHORTCUT TRICK #2 - TENSE PRESERVATION: The tense never changes during voice conversion. If active is present tense, passive will also be present tense.
Only the verb form changes.
Identify Subject (teacher), Verb (explains), Object (lesson)
Make object the new subject → 'The lesson'
Convert verb to passive form → 'is explained' (present simple)
Add 'by' + original subject → 'by the teacher' Passive: 'The lesson is explained by the teacher.' WORKED EXAMPLE 2: Passive: 'The book was written by Shakespeare.'
Identify passive structure (was written = past simple passive)
Make 'by' phrase the new subject → 'Shakespeare'
Convert to active verb → 'wrote' (past simple)
Make original subject the object → 'the book' Active: 'Shakespeare wrote the book.' SHORTCUT TRICK #3 - MODAL VERB FORMULA: With modals (can, may, must, should): Active: Subject + Modal + Base Verb + Object Passive: Object + Modal + be + Past Participle + by + Subject Example: 'You must complete the work' → 'The work must be completed by you' THE #1 MOST COMMON TRAP: Students often change the tense while converting voice. Remember: TENSE STAYS THE SAME, only verb form changes. If the active sentence is in past tense, the passive will also be in past tense. Don't convert 'He wrote a letter' to 'A letter is written by him.' The correct answer is 'A letter was written by him.' Another major mistake is forgetting that some verbs cannot be made passive. Intransitive verbs (verbs without objects) like 'sleep', 'die', 'arrive' cannot be converted to passive voice. EXAM TIP: In SSC CGL, always read the entire sentence carefully. Look for time indicators (yesterday, tomorrow, always) to confirm the tense. This prevents the common error of wrong tense usage in voice conversion.
4graded MCQs · easy to hard · full solution & trap analysis