Passive Voice: Definition, Rules, and Examples

Passive voice is an important part of English grammar. It is used when the subject of a sentence receives an action rather than performs it. Understanding passive voice helps you write clear sentences, describe actions, and communicate effectively in different situations.

In English, passive voice is commonly formed using a form of the verb be and the past participle of the main verb. For example, the active sentence “The teacher explains the lesson” becomes “The lesson is explained by the teacher” in passive voice. The focus changes from the person performing the action to the person or thing receiving it.

In this guide, you will learn what passive voice is, how to form passive voice sentences, and the important grammar rules you need to follow. You will also explore passive voice examples, sentence structures, and common mistakes to help you use passive voice correctly in speaking and writing.

What Is Passive Voice?

Passive voice is a grammatical structure in which the subject of a sentence receives an action rather than performs it. It is commonly used when the action or the person or thing receiving the action is more important than the person performing it.

In passive voice, the focus is on what happens to the subject. The person or thing performing the action, called the agent, may be included using the preposition by. However, the agent is often omitted when it is unknown, unimportant, or already understood.

Passive Voice Definition

Passive voice is a sentence structure in which the subject receives the action expressed by the verb.

For example:

• Active Voice: The chef prepares the meal.

• Passive Voice: The meal is prepared by the chef.

In the active sentence, “the chef” performs the action. In the passive sentence, “the meal” receives the action and becomes the subject.

Examples of Passive Voice in English

Here are some common passive voice examples used in everyday English.

These examples show how passive voice emphasizes the action or its recipient rather than the person performing the action.

Remember: Passive voice does not always require the word “by.” For example, “The car was repaired” is a complete passive sentence even though the person who repaired it is not mentioned.

For a broader explanation of both sentence structures, read our guide to Active and Passive Voice in English.

Passive Voice Sentence Structure

The passive voice sentence structure is formed using a form of the auxiliary verb be followed by the past participle (V3) of the main verb. The subject of a passive sentence receives the action instead of performing it.

Understanding the structure of passive voice helps English learners form grammatically correct sentences in different tenses.

Basic Structure of Passive Voice

The general formula for passive voice is:

In this example:

• The letter is the subject receiving the action.

• Was is the auxiliary verb indicating the past tense.

• Written is the past participle of the verb write.

• By Sarah identifies the person performing the action.

The phrase “by Sarah” is optional. The sentence “The letter was written” is also grammatically correct.

Main Components of Passive Voice

1. Subject

The subject is the person or thing that receives the action.

Example: The house was painted yesterday.

Here, “the house” is the subject receiving the action.

2. Auxiliary Verb (Be)

The verb be changes according to the tense and subject. Common forms include am, is, are, was, were, be, and been. Passive constructions can also use being.

Examples:

• The room is cleaned every morning.

• The room was cleaned yesterday.

• The room is being cleaned now.

• The room has been cleaned.

3. Past Participle (V3)

The main verb is used in its past participle form.

Examples:

4. Agent (Optional)

The agent is the person or thing performing the action. It is usually introduced with the preposition by.

Examples:

• The book was written by the author.

• The cake was baked by my mother.

• The building was designed by an architect.

Passive Voice Structure Examples

The auxiliary verbs change according to the tense, but the main verb remains in its past participle form.

Passive Voice with Modal Verbs

Passive voice can also be formed with modal verbs such as can, could, should, must, and may.

Formula: Subject + Modal Verb + Be + Past Participle (V3)

Examples:

• The assignment must be completed today.

• English can be learned through regular practice.

• The documents should be submitted before Friday.

• The problem may be solved tomorrow.

Important: Most passive constructions are formed from transitive verbs, which take objects. Intransitive verbs such as arrive, happen, and sleep generally cannot form passive sentences because they do not take direct objects.

Rules of Passive Voice in English

Passive voice follows specific grammar rules that help us form correct sentences. These rules explain how to use auxiliary verbs, past participles, verb tenses, and agents in passive constructions.

Learning the rules of passive voice is important for avoiding common grammatical mistakes and improving your English writing and speaking skills.

Rule 1: Use the Object of the Active Sentence as the Passive Subject

When changing an active sentence into passive voice, the object of the active sentence becomes the subject of the passive sentence.

Examples:

• Active: The teacher explains the lesson.

• Passive: The lesson is explained by the teacher.

• Active: Sarah wrote a letter.

• Passive: A letter was written by Sarah.

In both examples, the object of the active sentence becomes the subject of the passive sentence.

Rule 2: Use the Correct Form of the Verb Be

Passive voice requires the appropriate form of the auxiliary verb be. The form depends on the tense and subject of the sentence.

Examples:

• Present Simple: The room is cleaned every day.

• Past Simple: The room was cleaned yesterday.

• Present Continuous: The room is being cleaned now.

• Present Perfect: The room has been cleaned.

• Future Simple: The room will be cleaned tomorrow.

Using the wrong auxiliary verb can make a passive sentence grammatically incorrect.

Rule 3: Always Use the Past Participle (V3)

In standard passive constructions, the main verb must be in its past participle form, regardless of the tense.

Examples:

Remember that regular verbs usually form their past participles with -ed, while irregular verbs have different forms.

Rule 4: Keep the Original Verb Tense

When converting active voice into passive voice, the tense should remain the same. Only the grammatical structure changes.

Examples:

Maintaining the original tense ensures that the sentence expresses the same time reference.

Rule 5: Use By to Mention the Agent

The preposition by introduces the agent, which is the person or thing performing the action.

Examples:

• The novel was written by a famous author.

• The cake was prepared by my sister.

• The bridge was designed by an engineer.

However, the agent can be omitted when it is unknown, obvious, or unnecessary.

For example:

• The documents were stolen.

• The road was repaired.

• English is spoken worldwide.

These sentences are complete without mentioning who performed the action.

Rule 6: Use the Correct Pronoun Form

When an active subject becomes the agent in a passive sentence, a subject pronoun changes to its corresponding object pronoun.

Examples:

• Active: He completed the assignment.

• Passive: The assignment was completed by him.

• Active: They cleaned the classroom.

• Passive: The classroom was cleaned by them.

Rule 7: Use Be After Modal Verbs

When forming passive voice with modal verbs, use be followed by the past participle.

Formula: Modal Verb + Be + Past Participle (V3)

Examples:

• Active: You must complete the work.

• Passive: The work must be completed.

• Active: They can solve the problem.

• Passive: The problem can be solved.

• Active: Students should follow the instructions.

• Passive: The instructions should be followed.

Rule 8: Use Being in Continuous Passive Constructions

Continuous passive sentences use being before the past participle.

Examples:

• Present Continuous: The house is being painted.

• Past Continuous: The house was being painted.

Incorrect: The house is painting.

Correct: The house is being painted.

The word being indicates that the action is in progress.

Rule 9: Use Been in Perfect Passive Constructions

Perfect passive sentences use been after the appropriate form of have.

Examples:

• Present Perfect: The report has been submitted.

• Past Perfect: The report had been submitted.

• Future Perfect: The report will have been submitted.

The word been is necessary in these perfect passive constructions.

Rule 10: Use Passive Voice Only When the Verb Allows It

Passive voice is generally formed with transitive verbs because these verbs take objects.

Examples:

• Active: The boy kicked the ball.

• Passive: The ball was kicked by the boy.

However, ordinary intransitive verbs such as arrive, happen, and sleep cannot form standard passive constructions without an appropriate object.

Incorrect: The accident was happened yesterday.

Correct: The accident happened yesterday.

Some verbs with prepositional objects can also form passive constructions, such as “The children were looked after.”

Quick Summary of Passive Voice Rules

Understanding these rules will help you recognize and form passive voice sentences correctly.

Passive Voice Examples in English

Passive voice is commonly used in everyday conversations, academic writing, news reports, and formal communication. Understanding passive voice examples helps English learners recognize how actions are expressed when the subject receives the action rather than performs it.

Passive voice sentences can be affirmative, negative, or interrogative. The structure changes depending on the sentence type and verb tense.

1. Affirmative Passive Voice Examples

Affirmative passive sentences describe actions that happen to the subject.

Examples:

1. The classroom is cleaned every morning.

2. The letter was written by Sarah.

3. The homework has been completed.

4. The food is prepared in the kitchen.

5. The house was built in 2010.

6. English is spoken in many countries.

7. The documents were submitted yesterday.

8. The road is being repaired.

9. The meeting will be held tomorrow.

10. The package has been delivered.

In these sentences, the subject receives the action expressed by the verb.

2. Negative Passive Voice Examples

Negative passive sentences indicate that an action does not happen, did not happen, or has not been completed.

Basic Structure: Subject + Auxiliary Verb + Not + Passive Verb Form

Examples:

1. The room is not cleaned every day.

2. The assignment was not completed on time.

3. The letter has not been sent.

4. The food is not being prepared.

5. The meeting will not be canceled.

6. The documents were not signed.

7. The car has not been repaired.

8. The instructions are not followed correctly.

9. The project had not been finished.

10. The package will not be delivered today.

The word not is placed after the first auxiliary verb in these examples.

3. Interrogative Passive Voice Examples

Interrogative passive sentences are used to ask questions about actions received by the subject.

Basic Structure: Auxiliary Verb + Subject + Remaining Passive Verb Form + ?

Examples:

1. Is the room cleaned every day?

2. Was the letter written by John?

3. Has the homework been completed?

4. Is the food being prepared?

5. Will the meeting be held tomorrow?

6. Were the documents submitted yesterday?

7. Has the car been repaired?

8. Are the instructions followed correctly?

9. Had the project been completed before the deadline?

10. Will the package be delivered today?

In yes/no questions, the first auxiliary verb usually comes before the subject.

4. Passive Voice Examples with Modal Verbs

Modal verbs such as can, could, may, might, must, and should can also be used in passive sentences.

Structure: Subject + Modal Verb + Be + Past Participle (V3)

5. Passive Voice Examples in Everyday English

Here are some passive voice sentences commonly used in daily life.

• Breakfast is served at 8 a.m.

• The door was left open.

• The clothes are washed every weekend.

• The electricity bill has been paid.

• The groceries were delivered this morning.

• The television is being repaired.

• The tickets have already been booked.

• The kitchen is cleaned after dinner.

• The invitation was sent yesterday.

• The appointment has been confirmed.

These sentences focus on actions or their results without necessarily mentioning who performed them.

6. Active and Passive Voice Examples

The following table shows how the same action can be expressed in active and passive voice.

Both structures can describe the same event, but they emphasize different parts of the sentence.

For a more detailed explanation, read our guide to Active vs Passive Voice: Key Differences and Examples.

Passive Voice in Different English Tenses

Passive voice can be used in different English tenses to describe actions that happen in the present, past, or future. The structure of passive voice changes according to the tense, but the main verb always remains in its past participle (V3) form.

To form passive voice correctly, you must choose the appropriate auxiliary verbs while maintaining the original tense of the sentence.

1. Present Simple Passive Voice

The present simple passive is used to describe habits, routines, general facts, and repeated actions.

Structure: Subject + Am/Is/Are + Past Participle (V3)

Examples:

• English is spoken in many countries.

• The classroom is cleaned every morning.

• Letters are delivered daily.

2. Present Continuous Passive Voice

The present continuous passive describes actions that are happening at the moment of speaking or around the present time.

Structure: Subject + Am/Is/Are + Being + Past Participle (V3)

Examples:

• The house is being painted.

• The documents are being reviewed.

• Dinner is being prepared.

3. Present Perfect Passive Voice

The present perfect passive describes completed actions that have a connection to the present.

Structure: Subject + Has/Have + Been + Past Participle (V3)

Examples:

• The homework has been completed.

• The letters have been sent.

• The project has been approved.

4. Past Simple Passive Voice

The past simple passive describes actions that were completed at a specific time in the past.

Structure: Subject + Was/Were + Past Participle (V3)

Examples:

• The bridge was built in 1995.

• The documents were signed yesterday.

• The window was broken last night.

5. Past Continuous Passive Voice

The past continuous passive describes actions that were in progress at a particular time in the past.

Structure: Subject + Was/Were + Being + Past Participle (V3)

Examples:

• The road was being repaired yesterday.

• The rooms were being cleaned when we arrived.

• The report was being prepared at noon.

6. Past Perfect Passive Voice

The past perfect passive describes actions that were completed before another action or point in the past.

Structure: Subject + Had + Been + Past Participle (V3)

Examples:

• The work had been completed before the deadline.

• The tickets had been booked before we arrived.

• The documents had been submitted before the meeting.

7. Future Simple Passive Voice

The future simple passive describes actions that will happen in the future.

Structure: Subject + Will + Be + Past Participle (V3)

Examples:

• The results will be announced tomorrow.

• The project will be completed next week.

• The invitations will be sent soon.

8. Future Perfect Passive Voice

The future perfect passive describes actions that will be completed before a specific time in the future.

Structure: Subject + Will + Have + Been + Past Participle (V3)

Examples:

• The project will have been completed by Friday.

• The documents will have been reviewed by tomorrow.

• The building will have been constructed by next year.

Passive Voice Tenses Summary Table

The following table summarizes the most commonly used passive voice structures.

Can All English Tenses Be Used in Passive Voice?

Not all passive tense constructions are commonly used in everyday English.

For example, the present perfect continuous passive (“The house has been being painted”) and future continuous passive (“The house will be being painted”) are grammatically possible but sound awkward and are rarely used.

English speakers generally prefer simpler or more natural alternatives.

For example:

• Awkward: The house has been being painted for two days.

• More natural: Workers have been painting the house for two days.

Remember: The most important passive voice tenses for English learners are the present simple, past simple, present continuous, past continuous, present perfect, past perfect, and future simple.

For additional practice with verb forms, explore our complete guide to the 12 Tenses in English.

Conclusion

Passive voice is an important part of English grammar that helps you emphasize an action or the person or thing receiving it. It is commonly used in everyday communication, academic writing, scientific reports, and formal English, especially when the person performing the action is unknown or unimportant.

To form passive voice correctly, use the appropriate form of the auxiliary verb be followed by the past participle (V3) of the main verb. Remember to maintain the correct verb tense and use by only when mentioning the agent is necessary.

Understanding the definition, rules, structures, and examples of passive voice will help you write clearer and more accurate English sentences. Practice forming passive sentences in different tenses to improve your grammar skills and confidence.

For additional practice, explore our Passive Voice Exercises and review the differences between Active and Passive Voice.

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