eng8-2.2· Unit 2: Passive Voice· ~13 min

Passive: past simple

was/were + past participle.

The past simple passive is used when we want to focus on what happened to someone or something in the past, rather than on who did the action. We form it with the past tense of 'be' — 'was' (singular) or 'were' (plural) — followed by the past participle of the main verb. Regular verbs form their past participle by adding -ed: 'clean' → 'cleaned', 'build' → 'built' (irregular). To convert an active sentence to passive: the object becomes the new subject, the verb changes to was/were + past participle, and the original subject may be introduced with 'by' or dropped entirely. For example, 'Workers built this bridge in 1920' becomes 'This bridge was built in 1920 (by workers)'. The 'by' phrase is kept only when the agent is important or unknown. Negatives are formed with 'was/were not (wasn't/weren't) + past participle', and questions with 'Was/Were + subject + past participle?'. For example: 'The letter was written yesterday, but the packages were not delivered on time.'

Key terms

passive voice (past simple) — A verb form used to focus on what happened to someone or something in the past, rather than on who did the action. For example, 'This bridge was built in 1920.'
was / were — The past tense of the verb 'be' used to form the past simple passive. Use 'was' with a singular subject and 'were' with a plural subject.
past participle (V3) — The third form of the main verb that follows was/were in the passive. Regular verbs add -ed (clean to cleaned); irregular verbs must be memorised (write to written, build to built).
agent — The person or thing that performs the action, introduced with 'by' in a passive sentence. It is kept only when it is important or unknown, and is often dropped. For example, '...built (by workers).'
by-phrase — The 'by + agent' part of a passive sentence (for example, 'by the teacher'). It introduces a person or thing, never a time expression, so 'by last month' is wrong.
Form of the past simple passive
FormStructureExample
Affirmativewas/were + V3The car was repaired.
Negativewasn't/weren't + V3The windows weren't cleaned.
QuestionWas/Were + subject + V3?Were the books returned?
Active to passive (past simple)
Active (Past Simple)Passive (Past Simple)
Workers built this bridge.This bridge was built (by workers).
The teacher explained the rules.The rules were explained by the teacher.
Someone stole my wallet.My wallet was stolen.
✎Turning an active sentence into the passive
  1. 1Active sentence: The teacher explained the rules.
  2. 2Move the object to the front: The active object 'the rules' becomes the new subject.
  3. 3Choose was or were: 'Rules' is plural, so use 'were'.
  4. 4Add the past participle: Use V3 of 'explain', which is 'explained' (regular, -ed).
  5. 5Passive result: The rules were explained by the teacher.
✎Passive with an irregular verb and a dropped agent
  1. 1Active sentence: Someone stole my wallet.
  2. 2Move the object to the front: The object 'my wallet' becomes the new subject.
  3. 3Choose was or were: 'Wallet' is singular, so use 'was'.
  4. 4Add the past participle: 'Steal' is irregular: V3 is 'stolen', not 'stole'.
  5. 5Drop the unknown agent: The agent 'someone' is unknown, so the 'by' phrase is omitted: My wallet was stolen.
🚫Common mistake

Make was/were agree with the NEW subject, not the original one. 'Goals' is plural, so it is 'Three goals were scored', not 'was scored'; 'wallet' is singular, so 'My wallet was stolen'.

🚫Common mistake

Use the past participle (V3) after was/were, never the base form (V2/base). Write 'was written' not 'was write', 'was made' not 'was make', and 'were chosen' not 'were chose'.

⚠️Caution

Don't confuse tenses. 'Was/were + V3' is past simple passive; 'is/are + V3' is present simple passive and 'was reading' is past continuous active. For example, 'America was discovered in 1492', not 'is discovered'.

💡Note

'By' introduces a person or thing (the agent), not a time. Say 'The road was repaired last month' (no 'by'), and keep the agent only when it matters, as in 'The painting was created by Picasso in 1937'.

Rules

  1. 1Form: was (singular subject) / were (plural subject) + past participle — e.g., 'The car was repaired.'
  2. 2Regular past participles add -ed (open → opened); irregular ones must be memorised (write → written, break → broken, build → built).
  3. 3To convert active to passive: the active object becomes the new subject; add was/were + past participle; the active subject may follow 'by' or be omitted.
  4. 4Negative: was/were + not + past participle — e.g., 'The windows weren't cleaned.'
  5. 5Question: Was/Were + subject + past participle? — e.g., 'Were the books returned?'

Practice

10 easy · 10 medium · 10 hard

10 random questions per test

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