Why does the noun Duo have the article das?
Most nouns ending in -o are neuter.
Examples
das Auto (car), das Büro (office), das Kino (cinema), das Radio (radio), das Foto (photo), das Konto (account), das Cello (cello)
Exceptions
der Euro (euro), die Avocado (avocado), der Zoo (zoo)
Declension table for German noun Duo
How it changes across the four cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | das Duo | ein Duo | kein Duo |
| Akkusativ | das Duo | ein Duo | kein Duo |
| Dativ | dem Duo | einem Duo | keinem Duo |
| Genitiv | des Duos | eines Duos | keines Duos |
| Nominativ | die Duos | Duos | keine Duos |
| Akkusativ | die Duos | Duos | keine Duos |
| Dativ | den Duos | Duos | keinen Duos |
| Genitiv | der Duos | Duos | keiner Duos |
Examples in context
Real sentences using Duo in different cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | Das neue Duo spielt gut.The new duo plays well. | Ein neues Duo tritt auf.A new duo performs. | Kein neues Duo ist bekannt.No new duo is known. |
| Akkusativ | Ich sehe das neue Duo.I see the new duo. | Er sucht ein neues Duo.He is looking for a new duo. | Wir haben kein neues Duo nicht.We don't have any new duo. |
| Dativ | Ich helfe dem neuen Duo gern.I gladly help the new duo. | Er spricht mit einem neuen Duo.He talks with a new duo. | Ich glaube keinem neuen Duo nicht.I don't believe any new duo. |
| Genitiv | Der Beginn des neuen Duos ist nah.The beginning of the new duo is near. | Die Farbe eines neuen Duos ist schön.The color of a new duo is beautiful. | Der Wert keines neuen Duos ist gering.The value of no new duo is low. |
| Nominativ | Die neuen Duos sind beliebt.The new duos are popular. | Neue Duos kommen oft.New duos often come. | Keine neuen Duos sind hier.No new duos are here. |
| Akkusativ | Sie finden die neuen Duos.They find the new duos. | Ich mag neue Duos.I like new duos. | Wir brauchen keine neuen Duos nicht.We don't need any new duos. |
| Dativ | Man begegnet den neuen Duos.One encounters the new duos. | Ich arbeite an neuen Duos.I am working on new duos. | Wir folgen keinen neuen Duos nicht.We don't follow any new duos. |
| Genitiv | Die Dauer der neuen Duos ist lang.The duration of the new duos is long. | Der Zweck neuer Duos ist unklar.The purpose of new duos is unclear. | Die Ursache keiner neuen Duos ist unbekannt.The cause of no new duos is unknown. |
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Frequently asked questions
Everything you might wonder about der, die, das — and the Der Artikel app.
Is it der, die, or das Duo?
It is das Duo. In German, every noun has a grammatical gender, and Duo is neuter. You should always learn the article together with the noun to ensure your German grammar is correct.
What is the plural of das Duo?
The plural form of das Duo is die Duos. In German, regardless of the singular gender, all plural nouns use the definite article “die.”
What does das Duo mean in English?
The German word das Duo translates to “duo” in English.
How do you decline das Duo?
Like all German nouns, Duo changes its article depending on the case. In the singular, the forms are:
- Nominativ: das Duo
- Akkusativ: das Duo
- Dativ: dem Duo
- Genitiv: des Duos
These changes are necessary because German uses cases to indicate the noun’s role in a sentence (such as the subject or object). Knowing these forms allows you to build grammatically correct sentences.
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