Breakdown of Ich hänge die Lampe im Flur auf.
in
in
dem
the; (masculine or neuter, dative)
ich
I
der Flur
the hallway
die Lampe
the lamp
aufhängen
to hang up
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Questions & Answers about Ich hänge die Lampe im Flur auf.
Why is aufhängen split into hänge and auf at the end of the sentence?
Aufhängen is a separable verb in German. In a main clause, you conjugate the verb’s stem (here hänge) in second position and place the separable prefix (auf) at the end.
Why is die Lampe in the accusative case?
Die Lampe is the direct object of the verb aufhängen (what you’re hanging up), so you use the accusative case. The feminine nominative article die stays die in accusative, but other genders would change (e.g. der Mantel → den Mantel).
Why do we say im Flur instead of in dem Flur, and why is it dative?
Im is simply the contraction of in + dem. The preposition in with the dative case indicates location (“where?”). Since you’re placing the lamp in the hallway (location), you use the dative.
Could we use in den Flur instead of im Flur?
Yes, but that would change the meaning slightly. In den Flur uses the accusative to express movement into the hallway (“into the corridor”). Im Flur (dative) focuses on the location where the lamp ends up.
What’s the difference between hängen, aufhängen, and anhängen?
• hängen (intransitive) describes something that is hanging: Die Lampe hängt (“the lamp is hanging”).
• aufhängen (separable, transitive) means “to hang up” something on a wall or hook: Ich hänge die Lampe auf.
• anhängen often means “to attach” or “to append” (e.g. a file): Ich hänge die Datei an.
Can I replace Lampe with another noun without changing the sentence structure?
Yes. You just need to adjust the article and case for the new noun. For example:
Ich hänge das Bild im Flur auf (“I’m hanging the picture in the hallway up.”)
Notice das Bild is neuter, so its article in accusative is das.