Active voice and passive voice are two grammatical structures that show the relationship between a sentence’s subject, verb, and object. In active voice, the subject performs the action, while in passive voice, the subject receives the action. Understanding both forms helps you write clearer sentences, vary your style, and choose the structure that best fits your purpose Easy to understand, harder to ignore..
Introduction to Active and Passive Voice
Every action expressed in a sentence involves a doer, an action, and often a receiver. Voice tells readers whether the grammatical subject is the doer or the receiver of that action.
Consider these sentences:
- Active: The researcher conducted the experiment.
- Passive: The experiment was conducted by the researcher.
In the active sentence, the researcher is the subject and performs the action of conducting. In the passive sentence, the experiment is the subject and receives the action. The doer may still appear after the preposition by, but it is not essential to the sentence.
Both sentences describe the same event. Their difference lies in focus, sentence structure, and emphasis—not necessarily in correctness That's the part that actually makes a difference. Nothing fancy..
What Is Active Voice?
A sentence uses active voice when its subject performs the action expressed by the verb. The most common active sentence pattern is:
Subject + Verb + Object
Examples include:
- Maya wrote the report.
- The chef prepared a fresh meal.
- Strong winds damaged the roof.
- Students completed the assignment.
In each example, the subject acts:
- Maya performs the action of writing.
- The chef performs the action of preparing.
- Strong winds perform the action of damaging.
- Students perform the action of completing.
Active voice is often direct because it places the doer before the action and usually requires fewer words. This makes it especially useful in instructions, stories, news writing, academic explanations, and everyday communication No workaround needed..
Here's one way to look at it: “Submit the form before Friday” is clearer and more forceful than “The form should be submitted before Friday.” The first sentence identifies an implied reader as the person responsible for the action It's one of those things that adds up. Less friction, more output..
What Is Passive Voice?
A sentence uses passive voice when its subject receives the action. The most common passive pattern is:
Receiver + Form of “Be” + Past Participle + Optional “By” Phrase
Examples include:
- The report was written by Maya.
- A fresh meal was prepared by the chef.
- The roof was damaged by strong winds.
- The assignment was completed by the students.
The word be changes according to tense, number, and grammatical context. The main verb remains in its past participle form, such as written, prepared, damaged, or completed Worth keeping that in mind..
The optional phrase beginning with by identifies the person or thing performing the action. It is called the agent phrase. Writers often omit it when the doer is unknown, obvious, unimportant, or intentionally being concealed Small thing, real impact. Which is the point..
Compare:
- The window was broken during the storm.
- The window was broken by a falling branch.
The first sentence emphasizes what happened to the window. The second identifies the cause.
How to Identify Active and Passive Voice
To determine whether a sentence is active or passive, ask three questions:
- What is the subject?
- What action does the verb express?
- Is the subject performing or receiving that action?
If the subject performs the action, the verb is active. If the subject receives the action, the verb is passive.
For example:
-
The committee approved the proposal.
- Subject: the committee
- Action: approved
- The committee performed the action, so the verb is active.
-
The proposal was approved by the committee.
- Subject: the proposal
- Action: was approved
- The proposal received the action, so the verb is passive.
A form of be followed by a past participle often signals passive voice. Still, that pattern can also create other structures, so meaning matters more than a simple word search Less friction, more output..
In “The children were excited by the performance,” excited may function as an adjective describing the children’s emotional state. Now, in “The audience was excited by the speaker,” it may be interpreted as passive because the speaker caused the reaction. Context determines the function.
Passive Voice Across Different Tenses
Passive voice can appear in many verb tenses. The form of be changes while the past participle remains central to the construction.
| Tense | Active Voice | Passive Voice |
|---|---|---|
| Simple present | The company produces bicycles. In practice, | Bicycles are produced by the company. But |
| Present continuous | The company is producing bicycles. | Bicycles are being produced by the company. In practice, |
| Simple past | The company produced bicycles. Also, | Bicycles were produced by the company. |
| Past continuous | The company was producing bicycles. | Bicycles were being produced by the company. Because of that, |
| Present perfect | The company has produced bicycles. | Bicycles have been produced by the company. |
| Past perfect | The company had produced bicycles. | Bicycles had been produced by the company. On top of that, |
| Simple future | The company will produce bicycles. Consider this: | Bicycles will be produced by the company. |
| Modal | The company can produce bicycles. | Bicycles can be produced by the company. |
Notice that passive constructions usually contain more words than their active equivalents. This does not make them wrong, but unnecessary passive forms can make writing feel indirect or unnecessarily wordy Most people skip this — try not to. No workaround needed..
How to Change Active Voice into Passive Voice
Converting an active sentence into a passive sentence generally involves four steps:
- Move the active sentence’s object into the subject position.
- Choose the correct form of be for the original tense.
- Change the main verb to its past participle form.
- Add the original subject after by only if the doer is important.
For example:
- Active: The technician repaired the computer.
- Passive: The computer was repaired by the technician.
The original object, the computer, becomes the new subject. Because the original verb repaired is in the simple past, the passive verb becomes was repaired It's one of those things that adds up. Still holds up..
Another example:
- Active: The team is reviewing the results.
- Passive: The results are being reviewed by the team.
The present continuous form is reviewing changes to are being reviewed because results is plural.
Not every active sentence can be changed into a natural passive sentence. Passive voice normally requires a transitive verb, meaning a verb that takes an object Worth keeping that in mind..
- Active: The baby slept peacefully.
- Passive: Peacefully was slept by the baby.
The second sentence is grammatically unacceptable because slept has no object. Verbs such as
When Passive Voice Is Not Appropriate
Even though the passive voice is a flexible tool, it cannot be applied to every verb. The most common limitation involves intransitive verbs—verbs that do not take a direct object. Because the passive construction requires an object to become the subject, using it with an intransitive verb results in a sentence that is either ungrammatical or sounds unnatural.
| Intransitive verb | Example in active voice | Why the passive fails |
|---|---|---|
| sleep | The baby slept peacefully. | Every morning was run by her – the adverbial phrase cannot serve as the subject of a passive clause. Which means |
| appear | The suspect appeared in court. | At the station was arrived by them – the prepositional phrase cannot become the subject. |
| die | The plant died after the frost. That's why | |
| run | She runs every morning. Think about it: | After the frost was died by the plant – the time phrase is not a logical subject. |
| arrive | They arrived at the station. | Peacefully was slept by the baby – no object to receive the action. |
Other verb types that resist passive formation include linking verbs and sense verbs:
- Linking verbs such as seem, appear, become, feel, look connect a subject to a subject complement rather than acting on an object.
- The results seem conclusive. → Passive attempt: Conclusive was seemed by the results (unidiomatic).
- Sense verbs like make sense, fit, belong describe a relationship rather than a concrete action.
- This explanation makes sense. → Passive attempt: Sense was made by this explanation (awkward and rarely used).
There are, however, a few verbs that can appear in both active and passive forms because they can be interpreted transitively in certain contexts. For example:
- The window was broken by the storm. (Here break functions transitively.)
- The news was heard by everyone. (In this case hear takes an object, the news.)
When a verb can be used transitively, the passive is grammatically acceptable and often preferred when the recipient of the action is more important than the doer Still holds up..
Managing the “by‑phrase”
In passive sentences, the agent introduced by by is optional. Use it when the doer is necessary for clarity or explicitly required by the context:
- Necessary: The confidential file was accessed by an unauthorized user.
- Unnecessary or implied: The confidential file was accessed (by an unauthorized user).
If the agent is unknown, obvious, or irrelevant, omit the by phrase:
- The museum was vandalized last night. (The perpetrator is not specified.)
- The data has been processed. (The processor is not the focus.)
Choosing Between Active and Passive
Deciding which voice to use hinges
Choosing Between Active and Passive
Deciding which voice to use hinges on information flow and rhetorical emphasis. English sentences typically move from known information (the topic) to new information (the comment). The active voice naturally places the agent in the subject position—the default topic—while the passive voice allows the writer to promote the recipient or result to that prime position.
Prefer the active voice when:
- The agent is the topic. The committee approved the proposal keeps focus on the committee’s actions.
- Clarity and conciseness are very important. Active constructions generally require fewer words and avoid the auxiliary be + past participle structure that can slow reading speed.
- You want to assign responsibility. Mistakes were made is a classic evasion; We made mistakes accepts accountability.
Choose the passive voice when:
- The recipient is the established topic. The proposal was approved by the committee flows better if the previous sentence discussed the proposal’s content.
- The agent is unknown, irrelevant, or obvious. The ruins were discovered in 1922 (by archaeologists is implied); The law was enacted in 1990 (by the legislature is obvious).
- Scientific or technical objectivity is required. Methodology sections often favor The solution was heated to 100°C to underline the procedure over the researcher.
- You need to connect sentences cohesively. Passive voice allows the subject of the new sentence to link back to the object of the previous one: The system generates a report. This report is then archived by the server.
Common Pitfalls to Avoid
1. The "Zombie" Passive (Missing Agent Ambiguity) Avoid passives that leave the reader guessing who is responsible when that information is crucial Took long enough..
Weak: It is recommended that the guidelines be followed. Stronger: The board recommends following the guidelines. (Or: We recommend...)
2. Clunky Passives with Long Agents When the by-phrase becomes a heavy noun phrase loaded with modifiers, the sentence topples over The details matter here..
Awkward: The decision was made by the committee appointed last year to review financial oversight policies. Better: The committee appointed last year to review financial oversight policies made the decision.
3. Intransitive Verbs Forced into Passive-Like Structures As noted earlier, verbs like occur, happen, transpire, exist, and consist cannot be passivized.
Incorrect: A strange event was happened yesterday. Correct: A strange event happened yesterday. / A strange event occurred yesterday.
4. Unnecessary Shifts Within a Paragraph Jumping between voices without a rhetorical reason disorients the reader. Maintain a consistent perspective unless the information structure demands a shift.
A Quick Decision Checklist
| Question | Yes → Active | Yes → Passive |
|---|---|---|
| Is the doer the main topic? On top of that, | ✓ | |
| Is the sentence part of a methods/process description? | ✓ | |
| Is the receiver/result the main topic? | ✓ | |
| Is the doer unknown/irrelevant? | ✓ | |
| Does the doer need to be named for accountability? | ✓ | |
| Does the active verb create a shorter, punchier sentence? |
Not the most exciting part, but easily the most useful.
Conclusion
Voice is not a binary rule but a strategic tool for managing attention. The active voice is the engine of narrative drive—direct, energetic, and clear. Practically speaking, when you ask, "What does my reader need to see first? " the appropriate voice usually presents itself. Practically speaking, mastery lies not in obeying a blanket prohibition against the passive, nor in defaulting to the active, but in diagnosing the informational needs of each sentence. That said, the passive voice is the lens of focus—allowing writers to zoom in on results, shield irrelevant actors, or stitch complex ideas together with cohesive flow. By aligning grammatical subject with discourse topic, you transform syntax from a mechanical constraint into a precision instrument for clear thinking and persuasive writing.
