Active voice places the doer before the verb, while passive voice places the receiver of the action in the subject position. In “The technician repaired the printer,” the technician acts; in “The printer was repaired by the technician,” the printer receives the action. Both sentences are grammatical, but they direct attention to different information.
Key Facts at a Glance
- Active voice follows the usual subject-verb-object order: “The nurse checked the patient.”
- Passive voice uses a form of be plus a past participle: “The patient was checked.”
- Passive voice can omit the agent when the doer is unknown, obvious, or unimportant.
- Only verbs with a direct object can normally form a true passive construction.
- Active voice usually communicates responsibility more directly and with fewer words.
- Passive voice is useful when the result, process, or affected person matters more than the doer.
What Do Active and Passive Voice Mean?
Active voice means that the grammatical subject performs the verb’s action. In “The storm damaged three roofs,” the storm is the subject, damaged is the verb, and three roofs is the direct object receiving the action.
Passive voice means that the grammatical subject receives the action. In “Three roofs were damaged by the storm,” three roofs becomes the subject, while “by the storm” identifies the original doer. The meaning remains closely related, but the sentence changes its information emphasis.
| Feature | Active voice | Passive voice |
|---|---|---|
| Subject role | Performs the action | Receives the action |
| Basic order | Doer + verb + receiver | Receiver + be + past participle |
| Example | The chef prepared dinner. | Dinner was prepared by the chef. |
| Typical emphasis | Responsibility or action | Result, object, or affected person |
| Agent requirement | Usually stated first | Optional after by |
| Typical length | 5 words in the example | 8 words with the agent |
Voice is a grammatical relationship, not a measure of writing quality. “The committee approved the plan” is direct active voice, while “The plan was approved by the committee” is a valid passive sentence when the plan deserves first position.
How does passive voice change sentence focus?
Passive voice changes the topic position rather than merely making a sentence longer. A report may begin with “Researchers measured the temperature” when the researchers matter, or with “The temperature was measured every five minutes” when the measurement procedure matters.
That choice affects accountability. “The contractor damaged the pipe” names responsibility; “The pipe was damaged” reports the event without identifying who caused it. The second version is appropriate when the agent is unknown, but it can also conceal responsibility when a writer should name the actor.
How Does Passive Voice Work?
Passive voice combines a form of be with the past participle of a transitive verb. The tense appears mainly in the form of be, while the main verb remains in its past-participle form: “was inspected,” “is being inspected,” or “has been inspected.”
The active object becomes the passive subject. The active subject can appear in a by phrase, but English does not require that phrase. For example, “The window was broken” is passive even though the sentence does not say who broke it.
What is the active-to-passive formula?
The active formula is:
Subject performing the action + verb + direct object
The passive formula is:
Direct object + correctly timed form of be + past participle + optional by-agent
Example:
- Active: “The mechanic replaced the battery.”
- Receiver moved forward: “The battery…”
- Passive verb: “The battery was replaced…”
- Optional agent: “The battery was replaced by the mechanic.”
The original object must be a direct object. “The mechanic slept” cannot become passive because “slept” has no direct object to move into subject position.
Active and Passive Voice by Tense
The following table preserves the original tense while changing the voice. The agent is omitted in several passive examples because the process matters more than the person performing it.
| Tense or form | Active structure | Passive structure | Active example | Passive example |
|---|---|---|---|---|
| Simple present | S + base verb + O | O + am/is/are + participle | She writes the report. | The report is written by her. |
| Simple past | S + past verb + O | O + was/were + participle | She wrote the report. | The report was written by her. |
| Simple future | S + will + verb + O | O + will be + participle | She will write the report. | The report will be written. |
| Present continuous | S + am/is/are + -ing + O | O + am/is/are being + participle | She is writing the report. | The report is being written. |
| Past continuous | S + was/were + -ing + O | O + was/were being + participle | She was writing the report. | The report was being written. |
| Present perfect | S + has/have + participle + O | O + has/have been + participle | She has written the report. | The report has been written. |
| Past perfect | S + had + participle + O | O + had been + participle | She had written the report. | The report had been written. |
| Modal | S + can/must/should + verb + O | O + can/must/should be + participle | She must write the report. | The report must be written. |
Continuous passive forms contain two participles or verb-like elements: “is being tested.” Perfect passive forms contain been before the main participle: “has been tested.” These sequences look complicated because English retains both the original tense and the passive construction.
Can passive voice use every tense?
Most ordinary active tenses have passive equivalents, but some forms are rare or awkward in normal English. “The bridge will have been being repaired” is grammatically possible in a narrow context, yet “The repair will have continued for six months” is usually clearer.
Do not create a passive sentence merely because a mechanical conversion is possible. Natural usage determines whether the result communicates efficiently.
How Do You Change Active to Passive?
Convert active voice to passive voice by identifying the direct object, moving it to the front, preserving tense through be, and adding the original subject only when useful. A correct conversion changes grammatical roles without changing the basic event, time, or degree of certainty.
Step 1: Find the subject, verb, and object
Take the sentence “The laboratory assistant calibrated the microscope.”
- Subject: the laboratory assistant
- Verb: calibrated
- Direct object: the microscope
The microscope can become the passive subject because the verb “calibrated” takes a direct object.
Step 2: Move the object into subject position
Begin with “The microscope.” The new grammatical subject does not perform the calibration; it receives the action.
Step 3: Preserve the original tense
“Calibrated” is simple past, so use was or were. The passive form of “calibrate” is calibrated, its past participle.
The partial sentence becomes: “The microscope was calibrated.”
Step 4: Add the agent if the agent matters
Add “by the laboratory assistant” when the person or organization performing the action affects meaning:
“The microscope was carefully calibrated by the laboratory assistant before the experiment.”
Omit the agent when it is unknown, obvious, repetitive, or irrelevant:
“The microscope was carefully calibrated before the experiment.”
Step 5: Check meaning and pronoun case
Object pronouns become subject pronouns in passive constructions:
| Active subject | Passive by-agent form |
|---|---|
| I | by me |
| he | by him |
| she | by her |
| we | by us |
| they | by them |
| who | by whom, in formal usage |
“The report was written by she” is incorrect. The correct form is “The report was written by her.”
Which Voice Is Clearer, Active or Passive?
Active voice is usually clearer when the doer matters, the action needs energy, or the reader must understand responsibility quickly. Passive voice is clearer when the receiver, result, or process is the established topic and naming the agent would distract from the sentence’s purpose.
| Writing situation | Usually preferable | Example | Reason |
|---|---|---|---|
| Assigning responsibility | Active | The supplier missed the deadline. | Names the accountable actor |
| Reporting an unknown cause | Passive | The files were deleted overnight. | Avoids inventing an agent |
| Explaining a procedure | Either, based on focus | The analyst filtered the sample. | Active names the operator |
| Presenting a result | Passive | The sample was filtered twice. | Keeps the sample central |
| Giving an instruction | Active | Submit the form by Friday. | Makes the required action direct |
| Reporting a sensitive decision | Passive, selectively | Your request was declined. | Softens direct blame |
| Describing a victim’s experience | Passive | The customer was overcharged. | Centers the affected person |
George Orwell wrote in Politics and the English Language (1946), “Never use the passive where you can use the active.” The complete advice is a style preference, not a universal grammar rule. Passive voice remains useful when the receiver is the discourse topic or the agent cannot responsibly be named.
Where Should You Use Active or Passive Voice?
Use active voice for instructions, customer support, journalism, project ownership, and most general explanations. Use passive voice for methods, results, legal formulations, and situations where the affected object must remain the sentence topic.
Academic and scientific writing
Scientific writing often uses both voices. “We analyzed 240 samples” identifies the researchers’ action, while “The samples were stored at 4°C” emphasizes a reproducible method.
A practical rule is to use active voice for decisions and interpretations, then use passive voice for procedures when the material or process is the established topic. Excessive passive voice can make an academic paper harder to read, but eliminating every passive construction can produce repetitive first-person sentences.
Business and workplace writing
Active voice improves task ownership:
“The finance team will issue refunds by Friday.”
Passive voice can describe a completed status:
“Refunds will be issued by Friday.”
The active version identifies the team, while the passive version emphasizes the deadline and outcome. For bad news, passive wording may reduce confrontation, but omitting a responsible actor when customers need an explanation can damage trust.
Legal and policy writing
Legal documents use passive voice when the rule applies to an object or person regardless of who acts:
“Personal data must be stored securely.”
The passive construction makes the obligation central. However, “The policy was violated” may be too vague when a report needs to establish who violated it, when, and how.
Creative writing
Active voice usually gives action scenes speed:
“Mara opened the door and heard footsteps.”
Passive voice can represent danger or helplessness:
“Mara was trapped inside the locked room.”
The second sentence makes Mara’s lack of control central. A mystery writer may also omit the agent: “The letter was opened before breakfast.”
What Cannot Become Passive?
Intransitive verbs cannot normally form a true passive because they do not take direct objects. Common examples include arrive, happen, sleep, die, occur, disappear, and laugh.
| Verb | Why passive fails | Incorrect form | Correct form |
|---|---|---|---|
| arrive | No direct object | The station was arrived at. | The train arrived at the station. |
| happen | No direct object | The accident was happened. | The accident happened. |
| sleep | No direct object | The bed was slept. | The child slept in the bed. |
| disappear | No direct object | The evidence was disappeared. | The evidence disappeared. |
| laugh | No direct object | The joke was laughed. | The audience laughed at the joke. |
Some verbs can take a preposition but still lack a direct object. In “The committee agreed on the budget,” budget follows the preposition on; it is not a direct object in the ordinary active-to-passive pattern. “The budget was agreed on” is possible in some varieties of English, but the construction is a prepositional passive and may sound formal or awkward.
How Can You Identify Passive Voice?
Look for a subject that receives an action, followed by a form of be and a past participle. The reliable test is grammatical: ask whether the sentence represents an action performed on the subject, then identify the hidden or stated agent.
The “by zombies” test is a quick classroom diagnostic:
- “The window was broken by zombies.” The structure remains meaningful, so “was broken” is passive.
- “The child slept by zombies.” The result is nonsensical, so “slept” is not passive.
The test is not conclusive by itself. “The door is closed” may be passive, meaning someone closed it, or adjectival, meaning the door has a closed state. Context resolves the difference:
- Action: “The door was closed by the guard at 9 p.m.”
- State: “The door is closed during office hours.”
A form of be does not automatically signal passive voice. “The children are tired” contains a linking verb and an adjective, not a passive construction.
Is Passive Voice Bad Writing?
Passive voice is not bad writing, but unexplained or overused passive voice can hide responsibility, increase processing time, and create vague sentences. The right test is whether the sentence’s focus matches the reader’s need.
Compare these examples:
- Wordy and evasive: “It was decided by the committee that the launch should be delayed.”
- Clear active revision: “The committee decided to delay the launch.”
- Appropriate passive revision: “The launch was delayed until testing finished.”
The first sentence uses a passive structure plus an empty introductory it and a nominalization, decision implied by “was decided.” The active revision names the decision-maker. The second passive revision is useful when the launch, rather than the committee, is the topic.
What are common passive-voice mistakes?
| Mistake | Problem | Better revision |
|---|---|---|
| Missing agent where accountability matters | “The error was introduced.” | “The developer introduced the error.” |
| Incorrect tense | “The report is submitted yesterday.” | “The report was submitted yesterday.” |
| Wrong participle | “The form was wrote.” | “The form was written.” |
| Passive with intransitive verb | “The accident was happened.” | “The accident happened.” |
| Dangling modifier | “Walking home, the bridge was photographed.” | “Walking home, Ana photographed the bridge.” |
| Unnecessary passive chain | “The request was required to be reviewed.” | “The manager had to review the request.” |
Dangling modifiers occur when an opening phrase logically describes the wrong grammatical subject. “Walking down the street, a sign was seen by John” suggests that the sign was walking. The active revision puts the person performing the action in subject position.
What Are the Hardest Active and Passive Cases?
Two-object verbs, questions, negatives, and reporting structures require more than a simple word swap. The writer must preserve the intended object, auxiliary, question order, and emphasis.
Two-object verbs
Verbs such as give, send, show, lend, and offer can produce two passive patterns:
- Active: “The manager gave the intern a key.”
- Passive: “The intern was given a key.”
- Passive: “A key was given to the intern.”
The first passive version emphasizes the recipient. The second emphasizes the object transferred.
Questions
Keep the auxiliary before the subject:
- Active: “Did the technician repair the device?”
- Passive: “Was the device repaired by the technician?”
For present perfect forms:
- Active: “Has the company approved the proposal?”
- Passive: “Has the proposal been approved by the company?”
Negatives
Place not after the first auxiliary:
- Active: “The team did not finish the audit.”
- Passive: “The audit was not finished by the team.”
If the agent is irrelevant, omit it: “The audit was not finished on time.”
Get-passive constructions
English also uses get as a less formal passive auxiliary:
“Mina got promoted after six months.”
The get-passive often implies a change of condition, personal involvement, or an unexpected event. Formal reports generally prefer be: “Mina was promoted after six months.”
Practice Questions: Active or Passive?
Identify the voice, convert the active sentences, and revise the unclear example before checking the answers.
- The ancient manuscript was discovered in a hidden chamber.
- Lightning struck the transmission tower during the storm.
- The software is being tested by the quality-assurance team.
- Structural engineers will evaluate the bridge damage tomorrow.
- Convert: “The laboratory assistant calibrated the microscope.”
- Convert: “The delivery driver has dropped off the package.”
- Convert: “Executive management must approve all budget revisions.”
- Revise: “It was decided by the committee that the policy should be delayed.”
Answers and explanations
- Passive. “Manuscript” receives the action, and “was discovered” contains be plus the past participle.
- Active. “Lightning” performs the action “struck”; “tower” receives it.
- Passive. “Software” receives the testing, and “is being tested” is present continuous passive.
- Active. “Structural engineers” perform the future action “will evaluate.”
- The microscope was calibrated by the laboratory assistant. The simple past becomes was calibrated.
- The package has been dropped off by the delivery driver. Present perfect becomes has been dropped off.
- All budget revisions must be approved by executive management. The modal must becomes must be approved.
- The committee decided to delay the policy. The revision names the decision-maker and removes the empty it construction.
FAQ
Does passive voice always include “by”?
No. Passive voice may omit the agent when the doer is unknown, obvious, or irrelevant. “The window was broken” is passive without a by phrase. Add the agent only when identifying the actor changes the meaning, establishes accountability, or helps the reader understand the event.
Are “was” and “were” signs of passive voice?
No. “Was” and “were” can function as linking verbs, auxiliaries in continuous forms, or passive auxiliaries. “The room was quiet” is not passive because “quiet” is an adjective. “The room was cleaned” is passive when the room receives the cleaning action.
Is active voice always shorter?
No. Active voice is often shorter because it uses a direct subject-verb-object structure, but a specific active agent can add words. “The committee approved the plan” has five words, while “The plan was approved” has four because the passive omits the agent. Brevity alone should not determine voice.
Should students avoid passive voice?
Students should avoid unclear or unnecessary passive constructions, not passive voice itself. Academic methods, scientific results, historical events, and situations involving an unknown actor may require passive wording. Students should choose the voice that makes the intended topic and responsibility easiest to understand.
Can a passive sentence have an indirect object?
Yes. Verbs with two objects can produce more than one passive pattern. “The teacher gave the student feedback” can become “The student was given feedback” or “Feedback was given to the student.” The preferred version depends on whether the recipient or the thing given deserves emphasis.
How do active vs passive voice explained examples questions help revision?
Examples and questions help because voice recognition depends on grammatical roles, not on spotting one word. Identify who performs the action, determine whether the verb has a direct object, preserve the tense during conversion, and then decide whether naming the agent improves the sentence.
The Bottom Line
Active voice names the performer before the action, while passive voice places the receiver or result first. Use active voice when responsibility, speed, or direct instruction matters; use passive voice when the process, affected object, unknown agent, or established topic matters. For active vs passive voice explained examples questions, the decisive skill is not memorizing a ban on passive voice. It is choosing the sentence structure that gives the reader the right focus.
