Advanced causative and passive patterns

Compare The technician repaired our heating with We had our heating repaired. The first sentence tells us who did the repair. The second focuses on the service and the person who arranged it. This is the causative pattern have/get + object + past participle:

We had the roof repaired before winter.
I’m getting my passport renewed next month.
The editor will have the article checked before publication.

The subject does not perform the action on the object. It arranges for somebody else to do it, or makes sure it happens. The tense sits on have or get: had it repaired, has had it repaired, will get it repaired, is having it repaired.

Have and get: similar structure, different feel

Have something done is neutral and works in both formal and everyday English. Get something done is especially common in conversation and can suggest effort, progress or successful completion:

We had the windows replaced by a local firm.
We finally got the windows replaced after months of delays.

An agent can be added with by if the person matters: We had the windows replaced by a local firm. Often the agent is obvious, so there is no need to include it.

The same grammar can describe a bad experience

The construction does not always mean that the subject arranged the action. It can report something unpleasant that happened to them:

They had their car stolen while they were abroad.
Mina got her phone stolen in the crowd.

No one arranged the theft or damage. The context supplies the “suffered experience” meaning. Compare She had her portrait painted (she arranged the painting) and She had her portrait stolen (someone took it). When the intended meaning could be unclear, add context or use a more explicit clause: Someone stole her portrait while she was moving house.

Naming the person who does the work

If you want to mention the worker as the object, use a different pattern:

We had the technician check the sensor.
We got the technician to check the sensor.

After have + person, use the bare infinitive (check). After get + person, use to + infinitive (to check). Compare both with We had the sensor checked, where the sensor—not the technician—is the grammatical object.

Related causative passives: make, let and get

When make has an object and an active infinitive, the infinitive has no to: The rules made us wait. In the passive, to returns: We were made to wait. With let, English usually uses be allowed to in a passive rather than ~~was let to leave~~: Visitors were allowed to leave early. Get + person + to-infinitive often means persuading or managing to cause an action: I got the team to reconsider.

These patterns are related because they describe how an action is caused or arranged, but their verb forms are not interchangeable. I had the team reconsider presents the action as something I arranged or instructed; I got the team to reconsider often suggests I persuaded them.

Choosing between an arranged service and an unwanted event

Context usually tells readers which meaning is intended, but sometimes the same sentence could be read both ways:

I had my laptop repaired. (I arranged the repair.)
I had my laptop stolen. (someone stole it from me)

The past participle is passive in both. The subject is the person who arranges the service or experiences the event; the object receives the action. Add a time or agent phrase if the context is not clear: I had the laptop repaired by the campus technician versus I had the laptop stolen while I was on the train.

Causative get can suggest that the subject managed to make something happen after effort: We finally got the heating fixed. It can also occur in an unwanted-event reading: He got his wallet taken in the crowd. The passive form get + participle more generally has a conversational feel and often describes an event affecting the subject: She got promoted, They got caught, I got locked out. Do not confuse that with the object causative get the mechanic to check the brakes, which names a person and uses to + infinitive.

Causative meaning without a passive

A service can also be expressed with a person as the object: I had the mechanic check the brakes. The mechanic performs the action; the brakes receive it. I had the brakes checked instead puts the brakes in focus and leaves the mechanic unnamed.

English changes the infinitive form after other causative verbs:

The supervisor made us repeat the test.
We were made to repeat the test.
The supervisor let us leave early.
We were allowed to leave early.

After make in the active, use a bare infinitive; after be made in the passive, use to. With let, the passive usually uses be allowed to. This is why the direct form ~~we were let to leave~~ is normally avoided.

Causative choices also affect the speaker’s viewpoint. I persuaded the team to reconsider describes influence; I got the team to reconsider is more informal and can imply successful persuasion; I had the team reconsider sounds more like an instruction or arrangement. Choose the verb that accurately represents your role.