have
The German word 'haben' is used in the same way as the English 'have'. It is used to express possession, relationships, or actions. It is also used as an auxiliary verb in the formation of compound tenses, such as the present perfect. For example, 'Ich habe ein Buch' means 'I have a book'.
We have a house.
This statement is a plain, simple statement that incorporates the verb 'haben' (to have). The first person plural, 'wir' (we), is used with 'ein Haus' (a house) illustrating the fact that they possess a house.
I have time.
This sentence uses the first person singular, 'ich' (I), along with the verb 'haben' (to have). 'Zeit' (time) intimates that the person has time at their disposal possibly for a task or an activity.
They have a car.
In this statement, the third person plural pronoun 'sie' (they) is used. 'Ein Auto' (a car) is combined with the verb 'haben' (to have), signifying possession of the vehicle by the group addressed.