The passive voice is essential for formal and academic writing, scientific texts, news reports and any context where the action matters more than who performs it. IELTS Academic Writing Task 1 practically requires passive constructions to describe processes, and Cambridge B2–C1 exams test passive transformations extensively. Yet despite its importance, many learners find the passive confusing, especially across different tenses and with modal verbs.
How the Passive Is Formed
The passive uses be + past participle. The form of be changes to show tense, and the past participle of the main verb remains constant. The agent (the doer) is introduced with by when important, or omitted entirely.
- Present simple passive: The report is written every month.
- Past simple passive: The window was broken last night.
- Present perfect passive: The email has been sent.
- Past perfect passive: The decision had been made before she arrived.
- Future passive: The results will be announced tomorrow.
- Modal passive: The form must be submitted by Friday.
When to Use the Passive
Use the passive when: (1) the agent is unknown or unimportant: My bike was stolen. (2) the agent is obvious from context: Three people were arrested. (3) you want to focus on the action or result rather than the doer: The bridge was built in 1887. (4) you want to avoid saying who is responsible: Mistakes were made. (5) in formal, academic or scientific writing where impersonal style is preferred.
Active vs Passive: Transformation
To convert active to passive: the object of the active verb becomes the subject of the passive; the verb changes to the appropriate form of be + past participle; the subject of the active sentence becomes the agent introduced by by (optional if unimportant).
- Active: The company launched a new product.
- Passive: A new product was launched (by the company).
Get-Passive
In informal English, get can replace be to form the passive, often implying an unexpected or unfortunate event: She got promoted. He got fined. They got caught in the rain. The get-passive is common in speech and informal writing but should not be used in formal or academic contexts.
Practice Exercises
See also: English Grammar Tenses Guide and Modal Verbs Practice.
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Frequently Asked Questions
What is the passive voice and how is it different from the active voice?
In the active voice, the subject performs the action: The chef prepared the meal. In the passive voice, the subject receives the action: The meal was prepared (by the chef). The passive shifts the focus from the doer to the action or the result. It is formed with be + past participle. The agent (the doer) can be included with 'by' or omitted when unimportant or unknown.
How do I form the passive voice in different tenses?
Change the form of 'be' to match the tense, and add the past participle of the main verb. Present simple: is/are + pp (The letter is written). Past simple: was/were + pp (The letter was written). Present perfect: has/have been + pp (The letter has been written). Past perfect: had been + pp (The letter had been written). Future: will be + pp (The letter will be written). Modal: modal + be + pp (The letter must be written).
When should I use the passive voice instead of the active?
Use the passive when: (1) the agent is unknown (My bag was stolen); (2) the agent is unimportant or obvious (The suspect was arrested); (3) the action or result is the focus (The vaccine was developed in record time); (4) you want an impersonal or formal tone (It was decided that...); (5) in academic and scientific writing to describe processes and findings (The samples were analysed). In everyday speech, the active is usually more natural.
How do I form questions and negatives in the passive?
For passive questions, invert the subject and the relevant form of 'be': Was the report written? Has the email been sent? Will the results be announced? For passive negatives, add 'not' after the form of 'be': The report was not written. The email has not been sent. Results will not be announced today. The past participle stays the same; only the 'be' form changes.
Can all verbs be used in the passive voice?
Only transitive verbs (verbs that take a direct object) can be passivised: write → The report was written. Intransitive verbs (verbs with no object) cannot: arrive, happen, fall, sleep, die. You cannot say 'The accident was happened' because 'happen' has no object. Some verbs can be transitive or intransitive depending on context: The door opened (intransitive) vs The door was opened by the child (transitive, passive).
What is the passive with modal verbs?
Modal passives use: modal + be + past participle. Examples: The form must be submitted by Friday. The samples should be tested twice. Passengers can be fined for not having a ticket. The results could be affected by weather. This structure is very common in formal writing, instructions, regulations and IELTS process descriptions. The modal itself never changes — only 'be' appears after it.
How is the passive voice used in IELTS Academic Writing Task 1?
In IELTS Writing Task 1, the passive is essential for describing processes and diagrams: Raw materials are delivered to the factory. The mixture is then heated to 200 degrees. The product is packaged and distributed. For charts and graphs, passive constructions avoid repetitive subject-verb patterns: A significant increase was recorded in 2018. The data were collected over a five-year period.
What is the 'get' passive and when can I use it?
The 'get' passive uses 'get' instead of 'be': She got promoted. He got fined. They got caught. It is common in informal spoken English and often implies an unexpected, unplanned or unfortunate event. Do not use the 'get' passive in formal or academic writing, IELTS essays or Cambridge writing tasks — use the 'be' passive instead.
How do I convert an active sentence to a passive sentence?
Step 1: Identify the object of the active verb — it becomes the subject of the passive. Step 2: Change the verb to the appropriate form of be + past participle. Step 3: Make the original subject the agent with 'by' if relevant, or omit it. Example: The team (subject) completed (verb) the project (object) on time. → The project (new subject) was completed (passive verb) by the team (agent) on time. The tense of 'be' must match the tense of the original active verb.
What are common passive voice mistakes made by ESL learners?
Common errors: (1) omitting 'be' (The report written instead of The report was written); (2) using the wrong form of 'be' for the tense (The letter is written yesterday — should be was written); (3) using the base verb instead of past participle (The window was break — should be broken); (4) passive with intransitive verbs (The accident was happened); (5) overusing passive in informal contexts where active sounds more natural.