Have is often used to talk about ideas such as possession, relationships, individual characteristics, illnesses etc.

She has two daughters.
He has a bad temper.
He has no patience.
I have a bad cold.

In this structure have means ‘experience’. The usage is rather informal.

The structure ‘have + object’ is often used to talk about actions and experiences. This is common in an informal style.

The structures have to and have got to are used to talk about obligation.
The meaning is similar to must.

Sorry, I have (got) to go. (= I must go.)

Have got means exactly the same as have in most cases. The got-forms are more common in an informal style.

Has, have and had can be used both as auxiliaries and as principal verbs. When they are used as auxiliaries they help in the formation of present perfect and past perfect tenses.

Getting something done by somebody else is expressed by the structure have + object + past participle.