Compare these two sentences:
I paint my house every spring. (Do I paint it? - Yes, I do it myself.)
I have my house painted every spring. (Do I paint it? - No, I find some painters and they paint it for me.)
So, when we want to say that we cause (arrange, force, allow, convince) someone to do something for us, we use the causative form (= узрочни облик).
There are two causative structures:
Active (have / get / let / make + agent + infinitive + object) - have someone do something:
I let my mum cut my hair yesterday.
Passive (have / get / let / make + object + past participle) - have something done:
I had my hair cut yesterday.
The causative form is also used to talk about some bad experience:
They had their money stolen.
The causative verb can be used in any tense and any form (positive, negative and question).