German noun cases show the role a noun plays in a sentence, such as who does an action, who receives it, or who owns something. This matters because German often changes articles like der, die, das, ein, and eine to match that role. English mostly uses word order, but German uses both word order and case endings.
Learning the four cases helps students read and build sentences more accurately.
Key Facts
- Nominative marks the subject: Der Hund schläft means The dog sleeps.
- Accusative marks the direct object: Ich sehe den Hund means I see the dog.
- Dative marks the indirect object: Ich gebe dem Hund Wasser means I give the dog water.
- Genitive marks possession or close relationship: das Spielzeug des Hundes means the dog's toy.
- Definite articles by case and gender: nominative der, die, das, die; accusative den, die, das, die; dative dem, der, dem, den; genitive des, der, des, der.
- Indefinite articles by case and gender: nominative ein, eine, ein; accusative einen, eine, ein; dative einem, einer, einem; genitive eines, einer, eines.
Vocabulary
- Nominative case
- The nominative case marks the subject of the sentence, the noun or pronoun doing the action or being described.
- Accusative case
- The accusative case marks the direct object, the noun or pronoun that directly receives the action of the verb.
- Dative case
- The dative case often marks the indirect object, the noun or pronoun that receives something or benefits from an action.
- Genitive case
- The genitive case shows possession, origin, or a close relationship between nouns.
- Article
- An article is a word such as der, die, das, ein, or eine that comes before a noun and changes with gender, number, and case.
Common Mistakes to Avoid
- Using der for every masculine noun is wrong because masculine articles change by case: der in nominative, den in accusative, dem in dative, and des in genitive.
- Choosing accusative whenever a noun comes after the verb is wrong because the noun's role matters more than its position in the sentence.
- Forgetting dative after certain prepositions is wrong because words such as mit, nach, bei, seit, von, and zu always take the dative case.
- Treating genitive as only an English apostrophe is wrong because German genitive changes articles and often adds an ending to masculine and neuter nouns, as in des Mannes.
Practice Questions
- 1 In the sentence Ich sehe ___ Mann, choose the correct definite article for Mann from der, den, dem, or des, and name the case.
- 2 Complete the article table for the masculine noun Hund: nominative ___ Hund, accusative ___ Hund, dative ___ Hund, genitive ___ Hund.
- 3 Explain why Der Lehrer gibt dem Schüler ein Buch uses der for Lehrer, dem for Schüler, and ein for Buch.