der Professor
professor
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? | der Professor | die Professoren |
Accusative Akkusativ (Wenfall) | Wen oder was? | den Professor | die Professoren |
Dative Dativ (Wemfall) | Wem? | dem Professor | den Professoren |
Genitive Genitiv (Wesfall) | Wessen? | des Professors | der Professoren |
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 Professor | Professoren |
Accusative Akkusativ (Wenfall) | Wen oder was? | einen Professor | Professoren |
Dative Dativ (Wemfall) | Wem? | einem Professor | Professoren |
Genitive Genitiv (Wesfall) | Wessen? | eines Professors | Professoren |
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 Professor | keine Professoren |
Accusative Akkusativ (Wenfall) | Wen oder was? | keinen Professor | keine Professoren |
Dative Dativ (Wemfall) | Wem? | keinem Professor | keinen Professoren |
Genitive Genitiv (Wesfall) | Wessen? | keines Professors | keiner Professoren |
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 Professor | meine Professoren |
Accusative Akkusativ (Wenfall) | Wen oder was? | meinen Professor | meine Professoren |
Dative Dativ (Wemfall) | Wem? | meinem Professor | meinen Professoren |
Genitive Genitiv (Wesfall) | Wessen? | meines Professors | meiner Professoren |
Why These Endings Work
Standard pattern for most masculine (der) and neuter (das) nouns: genitive singular ends in -s or -es.
- Plural "Professoren" already ends in -n or -s, so Dative plural stays Professoren.
Example Sentences in Context
Der Professor hält heute eine Vorlesung über Goethe.
The professor is giving a lecture on Goethe today.
Nach der Vorlesung frage ich den Professor nach dem Thema der Hausarbeit.
After the lecture, I ask the professor about the topic of the term paper.
Interactive Tools & Related Guides
More Nouns in Professions & Roles
FAQs: der Professor
Is "Professor" der, die, or das in German?
"Professor" takes the masculine definite article "der" (der Professor). Gender cue: Latin -or -> masculine (der); strong sg, -en plural.
What is the plural and Dative plural of "der Professor"?
The Nominative plural of der Professor is "die Professoren" (pattern: -en). In the Dative plural it becomes "den Professoren".
How does "der Professor" change in the Genitive, Accusative, and Dative?
As a strong masculine noun, "Professor" changes only in the Genitive singular (des Professors); Accusative and Dative keep "Professor".