das Buch
book
Full 4-Case Declension Table
Switch determiner types to inspect how articles and noun endings change together.
Definite (der / die / das): Used for specific, already known, or general-category nouns.
| Case (Fall) | Question | Singular | Plural |
|---|---|---|---|
Nominative Nominativ (Werfall) | Wer oder was? | das Buch | die Bücher |
Accusative Akkusativ (Wenfall) | Wen oder was? | das Buch | die Bücher |
Dative Dativ (Wemfall) | Wem? | dem Buch | den Büchern |
Genitive Genitiv (Wesfall) | Wessen? | des Buches | der Bücher |
Indefinite (ein / eine): Used when introducing a countable singular noun; has no plural article in German.
| Case (Fall) | Question | Singular | Plural |
|---|---|---|---|
Nominative Nominativ (Werfall) | Wer oder was? | ein Buch | Bücher |
Accusative Akkusativ (Wenfall) | Wen oder was? | ein Buch | Bücher |
Dative Dativ (Wemfall) | Wem? | einem Buch | Büchern |
Genitive Genitiv (Wesfall) | Wessen? | eines Buches | Bücher |
Negative (kein / keine): Negates nouns with or without an indefinite article; follows ein-words in singular and die in plural.
| Case (Fall) | Question | Singular | Plural |
|---|---|---|---|
Nominative Nominativ (Werfall) | Wer oder was? | kein Buch | keine Bücher |
Accusative Akkusativ (Wenfall) | Wen oder was? | kein Buch | keine Bücher |
Dative Dativ (Wemfall) | Wem? | keinem Buch | keinen Büchern |
Genitive Genitiv (Wesfall) | Wessen? | keines Buches | keiner Bücher |
Possessive (mein / dein / …): Uses ein-word endings in singular and definite-like endings in plural (mein/dein/sein/ihr/unser/euer/Ihr).
| Case (Fall) | Question | Singular | Plural |
|---|---|---|---|
Nominative Nominativ (Werfall) | Wer oder was? | mein Buch | meine Bücher |
Accusative Akkusativ (Wenfall) | Wen oder was? | mein Buch | meine Bücher |
Dative Dativ (Wemfall) | Wem? | meinem Buch | meinen Büchern |
Genitive Genitiv (Wesfall) | Wessen? | meines Buches | meiner Bücher |
Why These Endings Work
Standard pattern for most masculine (der) and neuter (das) nouns: genitive singular ends in -s or -es.
- Dative plural adds -n to the plural stem: Bücher → Büchern.
Example Sentences in Context
Die Bücher sind neu.
The books are new.
In dem Buch gibt es viele schöne Bilder.
There are many beautiful pictures in the book.
Interactive Tools & Related Guides
More Nouns in Study & Grammar
FAQs: das Buch
Is "Buch" der, die, or das in German?
"Buch" takes the neuter definite article "das" (das Buch). Gender cue: Lexical gender — memorize together with its article.
What is the plural and Dative plural of "das Buch"?
The Nominative plural of das Buch is "die Bücher" (pattern: ¨-er). In the Dative plural it becomes "den Büchern".
How does "das Buch" change in the Genitive, Accusative, and Dative?
As a strong neuter noun, "Buch" changes only in the Genitive singular (des Buches); Accusative and Dative keep "Buch".