What the past passive does
Compare The night team restored the database with The database was restored by the night team. Both describe the same past event and participants. The active version foregrounds the team; the passive version makes the database the subject.
The past passive is useful in reports and accounts of completed events when the result or the affected object matters most. The agent may be unknown, obvious or secondary. The active is also correct and is often more natural when the person doing the work is the main point.
receiver of the action + was/were + past participle (+ by + agent)
- V3 / past participle —
- The third verb form: worked, gone, seen. Used after have/has or in the passive, for example; it is not always the same as V2.
The database was restored at 02:15.
The database was restored at 02:15.
The sentence reports the restoration of the database as a completed event. It focuses on the database and the result; it does not need to name the agent.
The night team restored the database at 02:15.
The night team restored the database at 02:15.
This active sentence highlights what the night team did. The past event and its time remain the same.
The form: was/were + past participle
Use was with I, he, she, it and a singular subject; use were with you, we, they and plural subjects. The main verb takes its past participle: checked, sent, written, taken or found. For irregular verbs, the simple past and participle may differ: broke/broken, took/taken, wrote/written.
Was or were agrees with the new passive subject, not with the agent after by: The report was signed by two directors, but Both reports were signed by the director. The participle itself does not change for singular and plural subjects.
I/he/she/it/one item + was checked; you/we/they/items + were checked
One suitcase was found, but two phones were stolen.
One suitcase was found, but two phones were stolen.
One suitcase takes was, whereas two phones takes were. Found and stolen are past participles.
The window was broken during the storm.
The window was broken during the storm.
After was, the passive needs the participle broken, not the simple past form broke.
Negatives, questions and short answers
Put not after was or were: The fee was not included; The files were not deleted. Wasn't and weren't are ordinary contractions. Do not add did not: the auxiliary be already forms the negative.
For a yes/no question, move was or were before the subject: Was the order cancelled? For an information question, put the question word first: Why was the order cancelled? A subject question such as Who was invited? has no additional subject. Short answers repeat be: Yes, it was; No, they weren't.
subject + was/were + not + past participle; Was/Were + subject + past participle?
- subject / S —
- The grammatical subject: who or what the clause is about; the verb agrees with it. In The book was written, the book is the subject, although someone else does the action.
- V3 / past participle —
- The third verb form: worked, gone, seen. Used after have/has or in the passive, for example; it is not always the same as V2.
The original files weren't changed.
The original files weren't changed.
Not forms the negative with were. Changed remains a past participle.
Were all the guests informed? — Yes, they were.
Were all the guests informed? — Yes, they were.
Were comes before the subject in the question, and the short answer repeats were.
A completed past context, not a magic time word
Choose the Past Simple when you present a past event as a completed whole: a single occurrence, a sequence or a fact in a report. The time can be explicit, such as at six, on Monday or in 2024, or established by context, such as minutes recording that a proposal was rejected.
Words such as yesterday, last week and in 2024 support a past reading, but do not create a passive. The train arrived has no object to promote to a passive subject. Was or were alone is also not a reliable diagnostic: was being checked describes a process, while was tired describes a state. Check the time context and the full verb structure.
During the 2024 audit, twelve accounts were reviewed.
During the 2024 audit, twelve accounts were reviewed.
The completed 2024 audit provides the past frame. The accounts are the receivers of the reviewing action.
The train arrived ten minutes late yesterday.
The train arrived ten minutes late yesterday.
Yesterday establishes a past time, but arrive is intransitive here, so the sentence is active.
By for the agent; with for the instrument
Use by to name the performer or cause when that information matters: an artist may create something, and a storm may damage something. Phrases such as by someone, by people or by the staff often add little when the agent is unknown or already obvious.
Use with for a tool: a door can be opened with a spare key by the caretaker. An inanimate cause can still follow by, so an inanimate noun after by is not automatically a mistake.
The fault was detected by an engineer with a thermal camera.
The fault was detected by an engineer with a thermal camera.
The engineer is the agent, introduced by by. The thermal camera is the instrument, introduced by with.
Three parcels were delivered before noon.
Three parcels were delivered before noon.
The sentence does not need to name the courier if that agent is obvious and unimportant to the report.
Change the viewpoint without changing the facts
To turn an active clause into a passive one, make its object the new subject, choose was or were to agree with that subject, use the past participle and keep the old subject after by if needed. Two inspectors signed the form becomes The form was signed by two inspectors.
Preserve the exact time, negation, question type, number and participant roles. The team did not approve either proposal on Tuesday can become Neither proposal was approved by the team on Tuesday. Did the guard lock all four doors? can become Were all four doors locked by the guard? Do not turn both objects into one, drop not or change the agent.
The fire service rescued both hikers at six. → Both hikers were rescued by the fire service at six.
The fire service rescued both hikers at six. → Both hikers were rescued by the fire service at six.
Both hikers, the fire service, the rescue action and the exact time are all preserved.
The auditors didn't copy the private folder. → The private folder wasn't copied by the auditors.
The auditors didn't copy the private folder. → The private folder wasn't copied by the auditors.
Didn't copy becomes wasn't copied. The passive must retain the negative meaning.
Limits and neighbouring forms
A passive normally requires a transitive use of the verb: Someone damaged the gate has an object. Happen, arrive, sleep and die in their usual intransitive meanings do not: was happened and was died are not the corresponding passive forms.
Compare the full chains: was checked after lunch presents a completed past action; is checked every day is present passive; was being checked at noon is an ongoing past process; had been checked before the inspector arrived is earlier than another past event; has been checked already relates a past action to the present. Got damaged is a get-passive, outside the target be-passive form.
Be + past participle can also describe a state. The door was closed all evening may describe its condition, whereas The door was closed by the guard at nine points to an event. Do not insist on a single interpretation solely because you see closed.
The checks were being completed when the alarm rang.
The checks were being completed when the alarm rang.
Were being completed is Past Continuous passive: the checks were in progress when the alarm rang.
The checks had been completed before the alarm rang.
The checks had been completed before the alarm rang.
Had been completed is Past Perfect passive: the checks were finished before the alarm rang.
The office was empty after six.
The office was empty after six.
Was links the subject to the adjective empty. This is a state description, not a passive action.
Common mistakes
Incorrect:The window was broke during the storm.
Correct:The window was broken during the storm.
The passive needs the past participle broken after was. Broke is the simple past form used in an active clause.
Incorrect:Both files was deleted on Monday.
Correct:Both files were deleted on Monday.
Both files is plural, so use were. An agent mentioned later does not determine agreement.
Incorrect:The fee didn't included in the invoice.
Correct:The fee wasn't included in the invoice.
Form the passive negative with was not or wasn't + included. Do not replace the auxiliary with did not.
Incorrect:Did the parcel delivered yesterday?
Correct:Was the parcel delivered yesterday?
Invert was and the subject to form the passive question. Do not add did.
Incorrect:The accident was happened at noon.
Correct:The accident happened at noon.
Happen is intransitive in this meaning. Report the event with happened, without passive was.
Incorrect:The forms were checking at ten.
Correct:The forms were being checked at ten.
To show the forms being checked at that time, use were being checked. Were checking is an active form, whose subject would do the checking.
Incorrect:The report was written yesterday, so it has been ready yesterday.
Correct:The report was written yesterday, so it was ready then.
A finished event yesterday needs the relevant past form, rather than Present Perfect. Ready describes a state here; was ready is not another passive construction.
Sources
- British Council — Passives: the original source review read the full B1–B2 explanation of focus and be + past participle chains.
- Cambridge Dictionary — Passive: forms
- Cambridge Dictionary — Passive: with and without an agent
- Cambridge Dictionary — Passive: typical errors
- Cambridge Dictionary — Past continuous or past simple?
- BBC Learning English — Active and passive voice: the original source review read the complete six-page PDF directly.
- BBC Learning English — Present and past passives: the original source review read the complete five-page PDF directly, including by and with.