
The passive voice can be used in any tense—simply change the form of be, which is always followed by a past participle.
| Tense | Passive Structure |
|---|---|
| Present Simple | am / is / are + past participle |
| Past Simple | was / were + past participle |
| Present Perfect | has / have been + past participle |
| Future | will be + past participle |
| Modal | can / must be + past participle |
(冠词)The 桥bridge (完成)has (被动)been 修理repaired.
This bridge has already been repaired. (Present Perfect Passive)
(冠词)The 工作work 将will (被动)be 完成done 很快soon.
The work will soon be completed. (Future Passive)
Note: Regardless of the tense, the core of the passive structure is always be (changing) + past participle (unchanged).