Questions & Answers about Ich bringe den Abfall in die Mülltonne.
Der Abfall is a masculine noun. In German, the article changes depending on the case:
- Nominative (subject): der Abfall
- Accusative (direct object): den Abfall
- Dative (indirect object): dem Abfall
In the sentence Ich bringe den Abfall in die Mülltonne, den Abfall is what you are bringing; it is the direct object, so it must be in the accusative case → den.
The preposition in is a two-way preposition; it can take accusative or dative:
- Accusative: movement into something (direction, change of location)
- Ich bringe den Abfall in die Mülltonne. (I move the trash into the bin.)
- Dative: location in something (no movement, just position)
- Der Abfall ist in der Mülltonne. (The trash is in the bin.)
Here, there is movement into the bin, so in + die (accusative feminine) is correct: in die Mülltonne.