What you’ll be able to do
After this lesson, you will be able to say where things are located and where they are moving to, using the nine two-way prepositions correctly with the right case. You will understand the difference between in der Küche (in the kitchen, location) and in die Küche (into the kitchen, direction), and you will start spotting these patterns in real German texts.
The idea
German has a set of prepositions that change their case depending on meaning. These are called Wechselpräpositionen (two-way prepositions). The nine you need are: an, auf, hinter, in, neben, über, unter, vor, and zwischen.
The rule is simple. Use the dative case when you are describing a location — where something is. Use the accusative case when you are describing a direction — where something is going. The question you ask yourself decides everything. Ask Wo? (Where?) and you need dative. Ask Wohin? (Where to?) and you need accusative.
This is one of those grammar points that looks intimidating on paper but feels natural once you have seen it a hundred times in real sentences. That is exactly what the reading task at the end of this lesson will give you.
See it in German
Here are the nine two-way prepositions in action, first with location (dative), then with direction (accusative). Notice how the article changes.
- Das Buch liegt auf dem Tisch. (The book is lying on the table.) — location, dative
- Ich lege das Buch auf den Tisch. (I put the book on the table.) — direction, accusative
- Die Katze sitzt hinter dem Sofa. (The cat is sitting behind the sofa.) — location, dative
- Die Katze läuft hinter das Sofa. (The cat runs behind the sofa.) — direction, accusative
- Er wohnt neben der Apotheke. (He lives next to the pharmacy.) — location, dative
- Er zieht neben die Apotheke. (He moves next to the pharmacy.) — direction, accusative
- Wir sind in der Bank. (We are in the bank.) — location, dative
- Wir gehen in die Bank. (We go into the bank.) — direction, accusative
- Das Bild hängt über dem Bett. (The picture is hanging above the bed.) — location, dative
- Das Flugzeug fliegt über die Stadt. (The plane flies over the city.) — direction, accusative
With masculine and neuter nouns, the dative article is dem and the accusative is den. With feminine nouns, dative is der and accusative is die. With plural nouns, dative is den and accusative is die. The preposition itself does not change — only the article that follows it.
Read it in the wild
Now go and find these patterns in a real German text. Visit any news article on this site that has an A1-A2 German version. Read through the German text once without stopping. Then go back and collect ten prepositions of place or movement. For each one, note what follows it — is it dative or accusative? Can you tell whether the sentence is describing a location or a direction?
For example, if you find im Park (in the park), you know im is the contraction of in dem, which is dative, so the sentence is describing where something is. If you find in den Park, that is accusative, so something is moving into the park. Write down all ten examples and their cases. This is how you turn grammar rules into something your brain recognises automatically.
Common mistakes
Here are the errors learners make most often with these prepositions.
Mixing up the case after the preposition. You write auf den Tisch when you mean something is sitting on the table. The correct form is auf dem Tisch. Always ask yourself: Wo? or Wohin??
Forgetting that contractions count too. im (= in dem), am (= an dem), zum (= zu dem), and beim (= bei dem) are all dative contractions. They signal location, not direction. If you see im Büro, something is in the office, not going to the office.
Using a two-way preposition when you need a fixed-case preposition. zu, von, aus, bei, mit, nach, seit, außer, and gegenüber always take one specific case and do not switch. Do not treat them like the nine two-way prepositions.
Confusing in with an for buildings. You go in die Bank (into the bank) but an den Strand (to the beach). in is used for enclosed spaces; an is used for edges, shores, and open boundaries. This takes practice, so collect examples as you read.
Where you are now
This is lesson 28 of 49 in your reading-based German course. You have just moved from describing possession in the previous lesson, Mein, Dein, Sein: German Possessives, into describing position and movement. The next lesson, Get Around: Ask For and Follow Directions in German, will build directly on what you have learned here, putting these prepositions into full navigational sentences. For the full course structure, see the hub article How to Learn German by Reading: Your Complete Roadmap.
