Genitive Case — German Grammar

The Genitive case indicates possession, affiliation, or origin. It describes the relationship between two nouns, corresponding to the English "of" or the possessive "'s". It answers the question "Whose?" ().

Masculine and Neuter Nouns

For masculine and neuter nouns, the Genitive is characterized by a change in the article and a suffix attached to the noun itself.

The definite article (masculine) and (neuter) both change to .
The indefinite article changes to .
The noun receives the ending or .

Generally, multi-syllable nouns take , while single-syllable nouns or those ending in s-sounds (like -s, -ß, -z, -x) take to make pronunciation easier.

Das ist das Auto des Lehrers.
That is the teacher's car.
Wir gedenken des Opfers.
We are commemorating the victim.
Er ist der Sohn eines Freundes.
He is the son of a friend.

Feminine and Plural Nouns

Feminine and plural nouns do not change their endings in the Genitive case. The case is marked solely by the article.

The definite article (both feminine and plural) changes to .
The indefinite article (feminine) changes to .

Die Farbe der Tür ist rot.
The color of the door is red.
Das ist die Entscheidung einer Chefin.
That is the decision of a boss.
Das Spielzeug der Kinder liegt hier.
The children's toy is lying here.

Adjective Endings in Genitive

If an adjective is placed between the article and the noun, it follows specific declension rules.

With an article: If a definite or indefinite article is present, the adjective almost always ends in . This applies to all genders and the plural.

Wegen des schlechten Wetters bleiben wir zu Hause.
Because of the bad weather, we are staying home.
Sie ist die Mutter der kleinen Kinder.
She is the mother of the small children.

Without an article: If no article is present, the adjective takes the ending of the missing definite article. Masculine/Neuter take , while Feminine/Plural take .

Der Geruch frischer Blumen ist angenehm.
The smell of fresh flowers is pleasant.
Wir bedürfen fremder Hilfe.
We require outside help.

Proper Names

When referring to proper names (people, cities, countries without articles), the Genitive is formed by adding an directly to the name. Unlike English, no apostrophe is used.

Das ist Annas Buch.
That is Anna's book.
Deutschlands Hauptstadt ist Berlin.
Germany's capital is Berlin.

If the name already ends in an s-sound (-s, -ß, -z, -x), an apostrophe is added instead of an additional s, but this is only a visual marker; it is not pronounced.

Das ist Hans’ Fahrrad.
That is Hans's bicycle.

Prepositions with the Genitive

Certain prepositions require the following noun to be in the Genitive case. Common examples include (because of), (despite), (during), and (instead of).

Trotz des Regens gehen wir spazieren.
Despite the rain, we are going for a walk.
Er ruft während der Arbeit an.
He calls during work.
Statt eines Autos kauft er ein Fahrrad.
Instead of a car, he is buying a bicycle.

Usage in Spoken German

In formal writing and literature, the Genitive is the standard way to express possession. However, in everyday spoken German, the Genitive is frequently replaced by the preposition combined with the Dative case.

Das ist das Buch von dem Lehrer.
That is the book of the teacher. (Spoken/Dative)
Das ist das Buch des Lehrers.
That is the teacher's book. (Written/Genitive)

While the + Dative construction is grammatically acceptable in speech, the Genitive remains mandatory after specific prepositions and in formal contexts.

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