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The Passive Voice
We use the passive when the action is more important than who does it, or when we do not know who did it.
Formation
Subject + be (in the correct tense) + past participle (+ by agent)
Active to Passive transformation
| Tense | Active | Passive |
|---|
| Present Simple | They make cars. | Cars are made. |
| Past Simple | They built the bridge. | The bridge was built. |
| Present Perfect | They have repaired it. | It has been repaired. |
| Future (will) | They will open it. | It will be opened. |
| Modal | You must do it. | It must be done. |
Recuerda
We only include "by + agent" when it is important to know who performed the action.
Ejemplo resuelto
Active: "Alexander Fleming discovered penicillin in 1928."
Passive: "Penicillin was discovered by Alexander Fleming in 1928."
Ejercicios
1) Rewrite in the passive voice:
a) Somebody stole my bicycle.
b) They are building a new hospital.
c) The teacher will correct the exams tomorrow.
d) People speak English all over the world.
2) Why is the passive voice common in scientific texts and news reports?
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