Up until this point, we have dealt exclusively with the Nominative, or Subject, Case.

Unlike English, German inflects nouns so that you know what grammatical function they have in a sentence.

This means that articles (indefinite and definite), possessive adjectives, etc. have endings that give information about the noun they precede.
 

We have already seen this in the Nominative Case [ ==>  SUBJECT]:
 
 

Der Stuhl ist braun.

der Stuhl  ==>  'der" tells us that "Stuhl" is Masculine, Singular and Nominative  (the subject)
 

Die Lampe ist alt.

die Lampe ==>  "die" tells us that "Lampe" is Feminine, Singular, and Nominative (the subject)
 
 

The Accusative Case is the case that marks Direct Objects, that is, the object of the action of the verb in the sentence.
The verb is often one that denotes possession, desire, seeing, etc. such as:  haben, möchten, brauchen, kaufen, sehen, hören, etc.
 
 

Melanie hat einen Stuhl.
 
What is the Subject of this sentence?        ==>  Melanie
What is the Verb?                                            ==>  hat [verb of possession]
What is the Direct Object?                            ==>  einen Stuhl
 
 

 Now say what Stefan has in his room, using the Accusative Case.

MODELL: Stefan hat einen Teppich.
     Mask, Sing., Akk.

 Stefan hat     Telefon.

Stefan hat    Klavier

Stefan hat   Sessel.

Stefan hat     Fernseher.

Stefan hat    Gitarre.

Stefan hat    Regal.

Stefan hat    Wecker.

Stefan hat    Radio.

Stefan hat    Schrank.

Stefan hat    Schreibtisch

Stefan hat      Bücher.

Stefan hat      Fenster.

Stefan hat      Poster.

Stefan hat      Bett.