Accusative Case - Functions

Nouns and pronouns use the accusative case:

when they are the direct object of a verb
when they are the object of an accusative preposition
when they are the object of an accusative/dative preposition
when they are used in an expression of definite time
when they are used in conjunction with certain special expressions.

1) Ich sehe den Mann.
2) Wir gehen durch das Haus.
3) Sie geht in einen Laden.
4) Er macht das jeden Abend.
5) Wir sind ihn endlich los! I see the man.
We go through the house.
She goes into a store.
He does that every evening.
We finally are rid of him!