← Back to all articles

Voice 13 min read

Twelve Tenses, One Pattern

Ask a class of aspirants how many passive voice formulas they know, and you'll hear numbers like twelve, sixteen, even twenty. Then ask them to convert "The clerk is writing the report", and half of them freeze. That is the trap of memorising formulas one by one: the moment a sentence looks slightly different from the textbook line, the memory slips.

The good news is that passive voice isn't twelve separate rules. It's one pattern with three small add-ons. This guide gives you the complete passive voice rules for all tenses, a conversion chart you can revise in five minutes, a five-step method for any sentence, the common traps that cost marks, and ten practice sentences with answers.

A quick note on the practice material. Every sentence in this post is an original practice sentence written for learning. None of them is a previous-year question. Exam patterns change from year to year, so always check the latest official notification for your exam.

In This Guide

1. The one pattern behind every passive sentence
2. The 5-step conversion method
3. Passive voice rules for all tenses: the conversion chart
4. Three memory helpers
5. Getting the be verb and pronouns right
6. When to drop the "by" part
7. Sentences with two objects
8. 6 common traps
9. 10 practice sentences
10. Quick revision
11. Frequently asked questions

The One Pattern Behind Every Passive Sentence

In an active sentence, the subject does the action: "Ravi writes a letter." In a passive sentence, the subject receives the action: "A letter is written by Ravi." The meaning is the same. What changes is the focus.

Every passive sentence, in every tense, is built the same way:

Look at the example again. "Writes" is simple present, so the passive uses the simple present of be, which is "is". Then comes the third form of the verb, "written". The tense hasn't changed. It has only moved from the main verb to the be verb.

V3 is the one thing you must get right

Because V3 always comes last, wrong third forms ruin the whole sentence. Many aspirants mix up the second and third forms of irregular verbs. Keep these pairs handy:

• write: wrote (V2), written (V3)
• take: took (V2), taken (V3)
• see: saw (V2), seen (V3)
• give: gave (V2), given (V3)
• sing: sang (V2), sung (V3)
• drive: drove (V2), driven (V3)
• eat: ate (V2), eaten (V3)

The 5-Step Conversion Method

When you meet an active sentence in an exam, don't reach for a formula. Follow these five steps in order.

1. Find the subject, verb and object. A passive sentence needs an object, so if there isn't one, stop here.
2. Name the tense of the active verb. Look at the helping verbs: is/am/are + V-ing is present continuous, has/have + V3 is present perfect, and so on.
3. Move the object to the front as the new subject. If it's a pronoun, change it to the subject form (me becomes I).
4. Write the be verb in the same tense, matching the new subject, and add V3 of the main verb.
5. Add "by + doer" if the doer matters, using the object form for pronouns (by him, by me).

Passive Voice Rules for All Tenses: The Conversion Chart

This chart uses one sentence throughout, so you can see exactly what changes from row to row. Start with the eight main forms, which are the ones you'll meet most often.

The four rarely used forms

Grammar books list four more tenses to make twelve. They can be converted, but the results sound clumsy, and writers usually switch to the active voice or a simpler tense instead. Learn the pattern so you can recognise it, but master the eight main forms first.

Three Memory Helpers That Replace Twelve Formulas

You don't need to memorise every row of the chart. You need three helpers, and one fact that never changes.

The fact that never changes: the word just before V3 is always a form of be. That form might be is, am, are, was, were, be, been or being. If you write a passive sentence and the word before V3 isn't one of these, something is missing.

Use that as a two-second check at the end of every conversion. "The report has written" fails the check, because "has" isn't a form of be. It should be "has been written".

Getting the Be Verb and Pronouns Right

Let the new subject decide the be verb

After conversion, the passive subject decides whether you use is or are, was or were, has or have. Never carry the number over from the old subject.

• "The clerk writes reports." becomes "Reports are written by the clerk." (plural subject, so "are")
• "The clerk wrote the report." becomes "The report was written by the clerk." (singular subject, so "was")
• "The clerk has written two reports." becomes "Two reports have been written by the clerk." (plural subject, so "have")

Pronouns change form in two places

Pronouns cause a lot of avoidable mistakes because they change form twice: once when the object moves to the front, and again when the old subject goes after "by".

• "She helps me." becomes "I am helped by her." Note "am", because the new subject is "I".
• "They invited us." becomes "We were invited by them."
• "He teaches them." becomes "They are taught by him."

When to Drop the "by" Part

The "by + doer" phrase is optional. In fact, one of the main reasons people use the passive is that the doer isn't worth mentioning. Drop it in these situations:

• The doer is unknown: "Someone stole my bike." becomes "My bike was stolen."
• The doer is obvious: "They arrested the thief." becomes "The thief was arrested."
• The doer is people in general: "People speak English all over the world." becomes "English is spoken all over the world."

Keep it when the doer is the new or important information: "Hamlet was written by Shakespeare." In most textbook conversion questions, the safe approach is to keep "by + doer" unless the active subject is a vague word like someone, people or they. If your question paper gives options, choose the one that matches the meaning of the original sentence.

Sentences With Two Objects

Some verbs, such as give, teach, send and show, can take two objects: an indirect object (the receiver) and a direct object (the thing given). Both can become the subject of a passive sentence, so there are two correct answers.

• Active: "She gave me a book."
• Passive 1: "I was given a book by her." (indirect object becomes the subject)
• Passive 2: "A book was given to me by her." (direct object becomes the subject, and "to" stays)

Another example: "The teacher taught the students grammar." becomes "The students were taught grammar by the teacher" or "Grammar was taught to the students by the teacher". If only one of these appears in the options, choose it.

6 Common Traps in Tense-Wise Conversion

These traps show up again in error spotting questions, where the mistake is hidden inside a longer sentence. If you want to see how, read our guide to active and passive voice errors in error spotting.

10 Practice Sentences With Answers

Convert each sentence into the passive voice. Give yourself eight minutes, and name the tense before you write. These are practice sentences (exam-pattern-based), not previous-year questions.

1. The teacher explains the lesson.
2. They are building a new bridge.
3. The committee has approved the proposal.
4. Meera wrote an essay.
5. The mechanic was repairing the car.
6. The officer had signed the file.
7. The company will announce the results tomorrow.
8. The students will have completed the project by Friday.
9. Someone stole my wallet.
10. Ravi helps me.

Show answers and explanations

1. The lesson is explained by the teacher. Simple present: is + V3.
2. A new bridge is being built by them. Present continuous: is being + V3.
3. The proposal has been approved by the committee. Present perfect: has been + V3.
4. An essay was written by Meera. Simple past: was + V3.
5. The car was being repaired by the mechanic. Past continuous: was being + V3.
6. The file had been signed by the officer. Past perfect: had been + V3.
7. The results will be announced by the company tomorrow. Simple future: will be + V3.
8. The project will have been completed by the students by Friday. Future perfect: will have been + V3.
9. My wallet was stolen. Simple past. The doer is unknown, so "by + doer" is dropped.
10. I am helped by Ravi. Simple present. "Me" becomes "I", and the be verb becomes "am".

If you got fewer than eight right, check your mistakes against the traps above.

Quick Revision

Where this fits in a structured plan

A chart like this is easy to read and easy to forget. What makes it stick is repeated practice on mixed sentences, with a clear method and a record of your mistakes. If you'd like that in one structured place, The Ultimate Guide to Active & Passive Voice for Competitive Exams is built around the same idea. Its units cover the core conversion formula and passive voice across all twelve tenses, then move on to modals, exceptions and formal usage. You can look at the details on the book page. The free guides in this series will still give you a solid start.

Frequently Asked Questions

Where to Go Next

Once the tense-wise pattern feels automatic, the next step is the wider picture and the special cases. Start with our complete guide to active and passive voice for competitive exams for the basics and the checking method. Then move on to passive voice with modals, questions and imperatives, and to the sentences that cannot become passive. For advanced learners, our article on quasi-passive and sensory verbs covers the exceptions that trip up even strong students.

Recommended Companion eBook

The Ultimate Guide to Active & Passive Voice for Competitive Exams

Move beyond the mechanical active-to-passive formula to confidently recognize when passive voice is grammatically impossible.