🏭 Lesson 4.1: The Passive Voice
Sometimes it doesn't matter who does an action — what matters is the action itself, or the thing it happens to. "This bridge was built in 1890." Who built it? We don't say, because we don't need to. That shift of focus is the passive voice, and it's a signature of confident, formal, grown-up English.
📚 What You'll Learn
By the end of this lesson, you will be able to:
- Form the passive in the present and past simple using be + past participle
- Decide when and why to use the passive instead of the active
- Use by to mention the doer (the agent) — and know when to leave it out
- Change active sentences into passive with a clear, reliable method
⏱️ Estimated Time: 55 minutes
🎯 Project: Describe a process, or some facts about your country or a product, using the passive — at least 6 sentences (e.g. "Coffee is grown in…", "It was built in…").
In This Lesson
Shifting the Focus
Every sentence you've made so far has been active: the subject does the action. "The builders made these cars." The subject (the builders) is the doer, and it comes first. That's the natural, everyday shape of English.
The passive turns the sentence around. The thing that receives the action moves to the front: "These cars are made in Japan." Now the cars are the star of the sentence, and the doer has quietly disappeared — because for this sentence, we simply don't care who made them.
This isn't a new tense. It's a new voice — a way of re-pointing the spotlight. You can put almost any tense into the passive, but at B1 we focus on the two you use most: the present simple and the past simple.
🧠 Mindset
The passive can feel strange at first because your first language may handle "who did it?" differently — many languages just use "they" or drop the subject entirely. Don't fight the strangeness; lean into it. Every time you meet a structure that doesn't map neatly onto your language, you're stretching into genuinely new territory. That discomfort is the feeling of your English growing. 🌱
The Form: be + Past Participle
There is one formula, and it never changes:
📖 The formula
The correct tense of BE + the PAST PARTICIPLE.
Only the be changes to show the tense (present or past). The past participle stays the same — it's the same form you already learned for the present perfect (made, built, spoken, sent, written, taken).
Present simple passive: am / is / are + past participle
| Subject | be (present) | Past participle | Example |
|---|---|---|---|
| I | am | paid | I am paid every month. |
| He / She / It | is | spoken | English is spoken here. |
| You / We / They | are | made | These cars are made in Japan. |
Negative: is not / are not + participle ("Plastic isn't recycled here"). Question: Is / Are + subject + participle ("Is this dish made with milk?").
Past simple passive: was / were + past participle
| Subject | be (past) | Past participle | Example |
|---|---|---|---|
| I / He / She / It | was | built | The bridge was built in 1890. |
| You / We / They | were | sent | The letters were sent yesterday. |
Negative: was not / were not + participle ("The package wasn't delivered"). Question: Was / Were + subject + participle ("Were the photos taken in Rome?").
✅ The whole trick: get the be right (present → am/is/are, past → was/were) and match it to the subject, then add the past participle. If your participle is correct for the present perfect, it's correct here too.
When & Why We Use It
This is the heart of the lesson. The passive isn't just a grammar puzzle — it exists because sometimes the action or the object matters more than who does it. We choose the passive when the doer is:
| Reason to use the passive | Example | Why the doer is dropped |
|---|---|---|
| Unknown | My car was stolen last night. | I don't know who did it. |
| Unimportant | The rooms are cleaned every day. | Who cleans them doesn't matter. |
| Obvious | He was arrested on Friday. | Obviously the police did it. |
| General / people in general | Rice is eaten all over Asia. | "People" — too vague to name. |
| Focus on the process/result | The beans are dried, then roasted. | We care about the steps, not the workers. |
💡 The one idea to remember
Use the passive when the action or the object is more important than who does it — or when the doer is unknown, obvious, or just "people in general". That's why you meet the passive constantly in news ("Three people were injured"), science ("The liquid is heated"), processes ("The coffee is packed"), and formal writing. Notice how impersonal and objective it sounds — that's exactly the effect it's chosen for.
The Agent with 'by'
Sometimes the doer is important or interesting after all. When we want to name it, we add it at the end with by. This "doer" has a grammar name: the agent.
"Hamlet was written by Shakespeare."
"America was discovered by Europeans in 1492."
"The design was chosen by the whole team."
Here the agent is the whole point — it's surprising, famous, or specific — so we keep it.
But most of the time, we leave the agent out. That's the normal case, not the exception.
⚠️ Don't add an empty agent
If the doer is just "someone", "people", or "they" in general, don't add a by-phrase — the whole reason you chose the passive was to drop it. So:
- "My bike was stolen
by someone." → just "My bike was stolen." ✅ - "Rice is grown
by peoplein Asia." → just "Rice is grown in Asia." ✅
Add by + agent only when the doer genuinely adds useful or interesting information.
Active → Passive
Once you can turn an active sentence into a passive one, you truly own the structure. Here's a method that always works, in three moves:
📖 The 3-step method
- The object of the active sentence becomes the subject of the passive.
- The verb becomes be + past participle (keep the same tense!).
- The old subject becomes the agent with by — or you drop it.
| Subject | Verb | Object | |
|---|---|---|---|
| Active | They | built | the house in 1990. |
| Passive | The house | was built | in 1990. (by them — dropped) |
Follow the arrows: the object (the house) jumps to the front, the verb becomes was built (past, because built was past), and the vague doer (they) simply vanishes.
graph LR
A["Active: They built the house"] -->|"object moves to front"| B["The house"]
B -->|"verb: be + participle"| C["The house was built"]
C -->|"doer dropped or 'by them'"| D["Passive: The house was built"]
One more, keeping the agent because it's interesting:
| Sentence | |
|---|---|
| Active | Shakespeare wrote Hamlet. |
| Passive | Hamlet was written by Shakespeare. |
⚠️ A quick note on transitive verbs
Only verbs that take an object (called transitive verbs) can be made passive — because the object is what becomes the new subject. Verbs like arrive, sleep, happen, go have no object, so they have no passive. You can't say "was arrived". Don't overthink this — if a sentence has a clear "thing" that the action happens to, it can go passive.
Phrase Bank & Model
These ready-made phrases are the passive's greatest hits — they'll appear again and again when you describe products, places, and processes.
Here's a short process description — see how naturally the passive carries it. The focus stays on the coffee, never on the workers:
How coffee is made: First, the beans are picked by hand. Then they are dried in the sun and are roasted at a high temperature. The roasted beans are ground into powder, which is packed into bags. Finally, the coffee is sold in stores all over the world.
Notice: every verb is are/is + past participle, and we never name a person — the process is the point.
And a short news-style model in the past passive:
Reporter: A new museum was opened in the city center yesterday.
Reporter: It was designed by a famous architect and was built in just two years.
Reporter: Thousands of tickets were sold in the first week alone.
🔊 Hear It & Repeat — Model Sentences
Listen to each model sentence, then say it back. Use the 🎧 Audio control (bottom-right) to choose a UK or US voice and slow the speed down. Notice how the passive puts the action first when the doer is unknown or not important.
- The bridge was built in 1920.
- English is spoken in many countries.
- My car is serviced once a year.
- The letters were sent yesterday.
- This house was designed by a famous architect.
Practice & Project
🏋️ Exercise 1: Form the passive
Objective: Make the present or past simple passive from the prompt in parentheses.
- English (speak — present) in many countries.
- The Eiffel Tower (build — past) in 1889.
- These shoes (make — present) in Italy.
- The letters (send — past) last Monday.
- Breakfast (not serve — present) after 10 a.m.
- the photos (take — past) in Paris?
✅ Answer
1. is spoken · 2. was built · 3. are made · 4. were sent · 5. isn't served · 6. Were … taken
🏋️ Exercise 2: Change active to passive
Objective: Rewrite each sentence in the passive. Keep by + agent only where it adds useful information; otherwise drop it.
- Someone stole my phone. → …
- They clean the office every evening. → …
- Leonardo da Vinci painted the Mona Lisa. → …
- People speak Spanish in Mexico. → …
- The company launched a new phone last year. → …
✅ Answer
1. My phone was stolen. (drop "by someone")
2. The office is cleaned every evening. (drop "by them")
3. The Mona Lisa was painted by Leonardo da Vinci. (keep the agent — it's interesting)
4. Spanish is spoken in Mexico. (drop "by people")
5. A new phone was launched last year. (agent optional: "…by the company")
🏋️ Exercise 3: Active or passive?
Objective: Choose the more natural voice for the focus described, then write the sentence.
- Focus on the bridge, not the workers (past): build / the bridge / in 1930.
- Focus on what your friend did (past): my friend / cook / dinner.
- Focus on the product, doer unknown (present): this watch / make / in Switzerland.
- Focus on the person doing it, present habit: my sister / paint / beautiful pictures.
✅ Answer
1. Passive — "The bridge was built in 1930." (the bridge is the focus)
2. Active — "My friend cooked dinner." (the doer is the focus)
3. Passive — "This watch is made in Switzerland." (product matters, doer unknown)
4. Active — "My sister paints beautiful pictures." (the person is the point)
🎯 Your Project: A Process or Some Facts, in the Passive
Describe a process (how something is made) OR some facts about your country or a product — out loud to a partner or class, or recorded on your phone. Aim for at least 6 passive sentences.
- (3 min) Choose your topic: a national product ("Coffee is grown in…"), a landmark ("It was built in…"), a famous dish, or a simple process (how tea/bread/cheese is made).
- (4 min) Write 6+ sentences. Mix present passive (things that are always true) and past passive (history: founded, built, discovered).
- (2 min) Add by + agent to exactly one sentence where the doer is interesting — and check you didn't add an empty "by people" anywhere.
- (3 min) Say or record your description smoothly, as if presenting it.
- (2 min) Check: is every verb be + past participle? Is the be in the right tense?
✅ Project Completion Checklist
- ☐ I wrote 6 or more passive sentences
- ☐ Every passive verb is be + past participle
- ☐ I used both present (is/are) and past (was/were) forms
- ☐ I added by + agent only where it was useful
- ☐ I did not write "by someone / by people"
🎯 Quick Quiz
Question 1: Complete the sentence: "The letters ___ yesterday."
Question 2: Which is the correct passive of "They built the school in 1985"?
Tips & Common Mistakes
✅ Do's
- Get the be right first (present am/is/are, past was/were), then add the participle — that's 90% of the passive.
- Reach for the passive in formal writing, news, and process descriptions, where the action matters more than the doer.
- Leave the agent out unless it's genuinely interesting or important.
💡 A register note
The passive is common in formal, written, and academic English and in the news — it sounds objective and impersonal. In everyday spoken English, people often prefer the active, or use a general "they" / "you": instead of "The rules were changed," a friend might just say "They changed the rules." Both are correct — choose the passive when you want that neutral, official tone.
❌ Common Mistakes
⚠️ Watch Out
- Forgetting be: "English spoken here" ❌ → "English is spoken here" ✅. No passive exists without a form of be.
- Wrong tense of be: "The bridge is built in 1890" ❌ → "The bridge was built in 1890" ✅ (past date → past be).
- Using the base verb, not the participle: "These cars are make in Japan" ❌ → "…are made in Japan" ✅.
- Empty agent: "My bag was stolen by someone" ❌ → "My bag was stolen" ✅.
- Passive with no object verb: "An accident was happened" ❌ → "An accident happened" ✅ (happen is not transitive).
📓 Learning Journal
Keep your learning journal going. After this lesson, take a few minutes to write down:
- Key concepts you learned
- Things that clicked for you
- Questions or confusion points to revisit
- Ideas you want to try
- Your progress and feelings about reaching B1
✍️ This lesson's prompt: Take one active sentence about your own life (e.g. "My grandfather built this house.") and rewrite it in the passive ("This house was built by my grandfather."). Then explain, in your own words, why a writer might choose one version over the other — what does each one put the spotlight on? Teaching yourself the "why" is how the choice becomes instinct.
📝 Lesson Summary
🎓 Key Takeaways
- The passive = the right tense of BE + past participle. Present: am/is/are + pp. Past: was/were + pp.
- Use it when the action or object matters more than the doer, or the doer is unknown, obvious, or general.
- Add by + agent only when the doer is interesting or important — otherwise leave it out (never "by someone/people").
- To make a passive: object → subject, verb → be + pp (same tense), subject → by-agent or dropped.
- Only transitive (object-taking) verbs can be passive.
🎉 What You've Accomplished
You've added a whole new voice to your English — not just a tense, but a way of controlling where a sentence points. The passive is exactly the structure that makes writing sound formal, objective, and mature, and you can now build it, understand why to use it, and transform active sentences at will. That's a real step up in range. 🎉
❓ Common Questions at This Stage
Isn't the passive "bad style" — I've heard people say to avoid it.
That advice is about overusing it in casual writing, not avoiding it entirely. The passive is the correct and expected choice in news, science, instructions, and formal reports. The skill is choosing it deliberately — for focus and objectivity — rather than by accident.
How do I know if a verb can be passive?
Ask: does the action happen to something? "They closed the store" → the store is closed → passive works. But "The store closed" (no object) or "She arrived" can't go passive, because there's no object to become the new subject.
Can I use the passive in other tenses too?
Yes — the pattern (be + past participle) works in every tense; you just change be. "It will be finished" (future), "It has been done" (present perfect). We focus on present and past simple now because they're the most common, and you can extend the same idea later.
🔭 Looking Ahead
Next, in Lesson 4.2 — Modals of Deduction & Obligation, you'll learn to express how certain you are and what people have to do: "It must be broken," "She can't be serious," "You have to book in advance." It's another big step toward saying precisely what you mean.
✅ Before the Next Lesson
- Describe how one everyday thing is made, using at least four passive verbs.
- Turn five active sentences from a news article into the passive.
- Write your Learning Journal entry for this lesson.
🌟 Encouragement for the Journey
Mastering the passive means you can now write like a journalist, a scientist, or an official — shifting focus wherever a sentence needs it. That's not a small trick; it's a genuine expansion of what your English can do. Keep noticing the passive out in the wild — on packaging, in headlines, in guidebooks — and it'll settle into your own voice fast. Onward to Lesson 4.2! 👋