The passive voice puts the focus on the action and the object, rather than on the person doing it. Form: be + past participle (V3). The tense of "be" changes according to the original active sentence.
Subject + verb + object
The teacher writes the lesson.
Object + be + V3 (+ by + agent)
The lesson is written by the teacher.
Note: the "by + agent" is optional. We omit it when the agent is unknown or unimportant.
| Tense | Active | Passive |
|---|---|---|
| Simple Present | writes | is / are written |
| Present Continuous | is writing | is / are being written |
| Simple Past | wrote | was / were written |
| Past Continuous | was writing | was / were being written |
| Present Perfect | has written | has / have been written |
| Past Perfect | had written | had been written |
| Future Simple | will write | will be written |
| Future Perfect | will have written | will have been written |
| Going to | is going to write | is going to be written |
| Modals (can, must, should, may) | can write | can be written |
Active: The students wrote some nice paragraphs yesterday.
Step 1: object = "some nice paragraphs" โ new subject.
Step 2: active = past simple "wrote" โ passive = "were written".
Passive: Some nice paragraphs were written by the students yesterday.
Identify the object, conjugate "be" in the same tense, add the past participle.
can โ can be ยท must โ must be ยท should โ should be ยท may โ may be ยท will โ will be.
Use it only when the agent is important. Often we omit it: "Mobile phones mustn't be used" โ we don't need to say by whom.
The passive voice is tested in nearly every National Exam paper. The exam gives you the start of the passive sentence โ you only have to complete it. Always check the original tense and use the right form of "be".