Nominativ

The nominative is the first of the four cases that belong to German grammar. It's the most simple and common form of referring to a noun. To recognize the nominative, you can look for the subject of a sentence, since it will always be in the nominative form. To find the subject, ask yourself who ("Wer?") or what ("Was?") is taking the action, as in the following examples:

Der Mann sucht seinen Schlüssel. (Wer sucht? Der Mann.)
Translation: The man is looking for his key. (Who is looking for? The man.)

Das Auto fährt auf der Autobahn. (Was fährt? Das Auto.)
Translation: The car is riding on the highway. (What is riding? The car.)

The nominative also occurs after the verbs "sein", "werden" and "bleiben".

Das ist eine Zeitung. (This is a newspaper)

Es wird eine Weile dauern. (It will take a while)

Es bleibt ein Weg. (There is still a way)

The articles are shown in the nominative form in the tables below:

Nominative Articles

Definite Articles:

Kasus	Maskulin	Feminin	Neutral	Plural
Nominativ	der	die	das	die

Indefinite Articles:

Kasus	Maskulin	Feminin	Neutral	Plural
Nominativ	ein	eine	ein	-