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🔄Grammar6 min read

Advanced Grammar: Passive Voice Explained

When the passive is the right choice (and when it weakens your writing) — form across tenses, the "by" agent, and CLB-relevant uses.

The passive voice is a marker of higher-level English — used well it earns marks on CELPIP/IELTS writing; used everywhere it makes writing vague and weak. The skill is knowing the form and when to choose it.

Active vs Passive

Active: the subject does the action. "The technician repaired the machine."
Passive: the subject receives the action. "The machine was repaired (by the technician)."

The passive moves the focus from the doer to the thing affected.

The Form: be + Past Participle

Across tenses, only the form of be changes; the past participle stays:

TensePassive formExample
Present simpleam/is/are + pp"The reports are reviewed weekly."
Past simplewas/were + pp"The form was submitted yesterday."
Present perfecthas/have been + pp"Your request has been approved."
Futurewill be + pp"You will be contacted soon."
Modalmodal + be + pp"This must be completed today."

Only transitive verbs (verbs with an object) can be passive. You cannot make "arrive" or "happen" passive.

When the Passive Is the Right Choice

  • The doer is unknown or irrelevant: "My car was stolen." (we don’t know who)
  • The result matters more than the actor: "The bridge was built in 1932."
  • Formal / academic / official tone: "The data were analysed using…" "Your application is being processed."
  • Diplomacy: "A mistake was made" softens blame vs "You made a mistake."

Government and institutional English (which newcomers read constantly) is full of justified passives — recognising them aids comprehension.

The "by" Agent — Often Omitted

Add "by + doer" only if it carries information: "The novel was written by a Canadian author." Omit it when obvious or unknown: "English is spoken here." (by whom is irrelevant). Over-using "by" agents is a common learner habit.

Don’t Overuse It

Strong writing is mostly active — it is clearer and more direct. Chains of passives ("It was decided that it would be required that…") read as evasive. Use the passive deliberately for the reasons above, not as a default style.

Errors That Cost Marks

  1. Missing "be": ✗ "The report submitted yesterday." → ✓ "The report was submitted yesterday."
  2. Wrong participle: ✗ "It was wrote by her." → ✓ "It was written by her."
  3. Passive with an intransitive verb: ✗ "An accident was happened." → ✓ "An accident happened."
  4. Tense lost: keep the original tense in the be form, not the participle.

How to Practise

Take a paragraph you wrote. Find one sentence where the result matters more than the doer and rewrite it in the passive; find one weak passive and make it active. Deliberately switching voice on your own sentences builds real control — far more than transformation drills.

Bottom Line

Master be + past participle across tenses, choose the passive for unknown/irrelevant doers, formal tone, or diplomacy — and otherwise prefer the active. Controlled, purposeful use of the passive is exactly the kind of range that lifts a CLB writing band.

Tags:

#Grammar#Passive Voice#Academic Writing#CLB

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