The passive voice is one of the first B1 structures where students already know every word they need — be and the past participle — and still get it wrong, because the difficulty isn't the form. It's knowing why anyone would choose it. Teach the reason first and the form becomes almost obvious.
1. Start with "who did it?" — and whether it matters
The passive exists to move the focus from the person who acts to the thing that is affected. Show a few sentences from real life: "This bridge was built in 1932." "English is spoken here." "My phone was stolen." Ask students who built the bridge, who speaks English, who stole the phone. The honest answer — "we don't know" or "it doesn't matter" — is the whole point of the passive. When students see that the agent is unknown, obvious or unimportant, the structure stops feeling like a grammar trick and starts feeling useful.
2. Build every passive from its active sentence
Write an active sentence, then rebuild it in three moves: the object moves to the front, be takes the tense of the original verb, and the main verb becomes a past participle. "Workers clean the rooms every day" → "The rooms are cleaned every day." Start with present simple and past simple only. The rule that unlocks every later tense is simple: the tense lives in "be", the meaning lives in the participle — so will be cleaned, has been cleaned, is being cleaned are just new forms of be in front of the same participle.
3. Teach "by + agent" as the exception, not the rule
Students who learn the passive through transformation drills tend to keep the agent every time: "The pizza was eaten by someone." Tell them explicitly that most passive sentences have no agent, and that "by …" is only added when the agent is new or important information: "Guernica was painted by Picasso." A quick sorting task — keep or delete the agent in ten sentences — fixes this faster than any explanation.
4. Move to more tenses and modals only when the core is automatic
Once present and past are secure, add future (will be + participle), be going to, and modals (must be done, can be recycled). These are the forms students meet in instructions, rules and news, so tie them to those text types: a list of school rules, a recycling guide, a news report about a new stadium.
Common mistakes and how to catch them
- Missing "be": "The house built in 1990." Students drop the auxiliary because it carries no meaning for them. Point back to the three-move rebuild: no be, no tense.
- Wrong participle: "The window was broke." This is an irregular-verb problem, not a passive problem — review the third column before the lesson.
- Tense lost in the transformation: "They built it" → "It is built." Have students underline the active verb and write its tense above it before they rewrite.
- Passive with intransitive verbs: "The accident was happened." Only verbs with an object can go into the passive; happen, arrive, die can't.
A 45-minute lesson shape that works
- 5 min — Warm-up with real sentences: who did it, and do we care?
- 10 min — Present be + past participle in present and past simple, rebuilding from active sentences.
- 10 min — Controlled practice: active → passive, deciding whether to keep the agent.
- 10 min — Tense-matching drill: the tense always moves into be.
- 10 min — Freer practice: describe a process in the passive.
Free worksheets for this lesson
These printable PDFs follow the same progression — present and past first, then more tenses and modals — each with its grammar, reading and writing piece:
- Passive Voice in Present Simple – Grammar — the core form, with processes and facts.
- Passive Voice in Present Simple – Reading — recognising the passive in a connected text.
- The Passive Voice: Past Simple – Grammar — history, inventions and "was/were + participle".
- Passive Voice: Present and Past – Practice — mixed practice once both tenses are introduced.
- The Passive Voice in Future Simple – Grammar — "will be + participle" for plans and predictions.
- The Passive Voice with Modal Verbs – Grammar — rules and instructions: must be done, can be used.
- The Passive Voice in All Tenses – Writing — freer production to close the unit.
Browse all grammar worksheets or the full B1 collection.
📚 See all Passive Voice worksheets — every grammar, reading, writing and practice sheet on this point, grouped by CEFR level.