These questions ask you to build or recognise a passive for a completed event in the past. The reliable method is to identify the past-time signal, confirm that the subject receives the action, choose was or were by agreement, and add the past participle.
Build the phrase from time and subject
First find the time frame. Yesterday, last night, last Friday, in a finished year, or a record of a completed event normally points to the past simple. Then identify the grammatical subject and ask whether it performs the action or receives it. A receiving subject calls for a passive frame. Choose was or were from the subject's number, then place the lexical verb in its past-participle form. Do not choose the auxiliary from a nearby plural noun or from the agent in a by-phrase.
| Signal or subject | Decision |
|---|---|
| A finished time such as yesterday, last week, a past date or a completed record | Use the simple past time frame. |
| I, one thing, a singular noun, or a phrase beginning with each or every | Begin the passive phrase with was. Each and every keep the subject singular. |
| Two or more things, a plural noun, we, they or you | Begin the passive phrase with were. Words such as both and two make the plural reading explicit. |
| The lexical verb after was or were | Use its past participle, not the base form or the -ing form. |
| The expression be born | Keep born and change be to was or were for the subject. Birthed is not the neutral standard verb for this meaning. |
Run a four-part check before deciding: finished past time, receiving subject, agreeing was or were, and a past participle. This keeps tense, voice, agreement and verb shape as separate decisions.
The traps
- Was and were can both stand before a participle, but only one agrees with a given subject. Use was for a singular head and were for a plural head; each and every are singular even when they describe members of a larger group.
- A base verb after was or were does not complete a passive. The auxiliary carries past tense, but the lexical verb still has to appear as a past participle.
- A lone past-looking verb may resemble a completed event, yet it lacks passive be. When the subject receives the action, make sure was or were is present before the participle.
- An -ing form after was expresses an active continuous pattern when no being follows. It cannot replace the past participle required directly after was or were in the past simple passive.
- Had been adds a perfect layer and places one past event before another past reference point. Do not add that layer when the instruction and time context call simply for one completed past event.
Try it
Use the be-passive form of the verb in brackets: The classroom walls ___ last Friday before the pupils returned. (paint)
Use the be-passive form of the verb in brackets: The replacement battery ___ at noon yesterday. (deliver)
Use the be-passive form of the verb in brackets: Both twins ___ in the same village in 2019. (be born)