The passive forms of a verb are created by combining a form of the "to be verb" with the past participle of the main verb. Other helping verbs are also sometimes present: "The measure could have been killed in committee." The passive can be used, also, in various tenses. Let's take a look at the passive forms of "design."
| Tense | Subject | Auxiliary | Past Participle | |
| Singular | Plural | |||
| Present | The car/cars | is | are | designed. |
| Present perfect | The car/cars | has been | have been | designed. |
| Past | The car/cars | was | were | designed. |
| Past perfect | The car/cars | had been | had been | designed. |
| Future | The car/cars | will be | will be | designed. |
| Future perfect | The car/cars | will have been | will have been | designed. |
| Present progressive | The car/cars | is being | are being | designed. |
| Past progressive | The car/cars | was being | were being | designed. |
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