a / an (indefinite article)
Introduces a non-specific, new noun. There is no plural — plurals just drop the article (Ich sehe Hunde = I see dogs).
a man (masculine)
a woman (feminine)
a child (neuter)
#5 · Determiner / article · DET
In German, ein means “a / an (indefinite article)”. It’s the #5 most frequently used German word. Below you’ll find how to use it, its forms, real example sentences, and common word pairings.
The indefinite article "a/an" (and the number "one"). Like der, it changes for gender and case — ein/eine/einen/einem/einer/eines. Its endings are the master pattern for a whole family of "ein-words": kein, mein, dein, sein, ihr, unser.
neutralIntroduces a non-specific, new noun. There is no plural — plurals just drop the article (Ich sehe Hunde = I see dogs).
a man (masculine)
a woman (feminine)
a child (neuter)
Stressed, ein means the number "one" (often written eins when counting).
only one piece
Ranked by how often each form shows up in spoken German. The top 3 forms cover about 87% of everyday use — learn these first.
| Nominative — masc. / fem. / neut. | ein / eine / ein | masc. and neut. have NO ending here |
|---|---|---|
| Accusative | einen / eine / ein | only masculine changes (einen) |
| Dative | einem / einer / einem | (to) a |
| Genitive | eines / einer / eines | of a |
| Plural | — (no article) | use kein for negation: keine Hunde |
vs. der (definite article)
ein = a non-specific "a/an"; der = a specific "the".
Ich kaufe einen Apfel. / Ich kaufe den Apfel.
I buy an apple. / I buy the apple.
vs. kein (negative article)
kein is "not a / no" and declines exactly like ein — plus a plural form.
Ich habe einen Hund. / Ich habe keinen Hund.
I have a dog. / I have no dog.
Ich habe einen Bruder.
I have a brother.
einen - accusative masculine — the object of haben
Sie wohnt in einer Stadt.
She lives in a city.
einer - dative feminine after in
Das ist ein Problem.
That is a problem.
ein - nominative neuter — no ending
| eine | "a" before feminine nouns | feminine form |
|---|---|---|
| kein | not a / no (same endings + plural) | negative article |
| mein | my (declines like ein) | possessive (ein-word) |
ein has NO ending in three cells — nom. masc. (ein Mann), nom./acc. neut. (ein Kind). Everywhere else it takes the same ending as der/die/das. Master ein and you get kein/mein/dein for free.