Two-way prepositions (Wechselpräpositionen) with accusative vs dative
A2Two-way prepositions (Wechselpräpositionen): What they are
Two-way prepositions (Wechselpräpositionen) are German prepositions that can be followed either by the accusative or by the dative case. Which case you use changes the meaning:
- Accusative = direction / change of place (answer to "Wohin?" — where to?)
- Dative = location / static position (answer to "Wo?" — where?)
In short: if something moves or someone moves it to a new position, use accusative. If you describe where something is, use dative.
Which prepositions are two-way?
The most common Wechselpräpositionen are:
- an, auf, hinter, in, neben, über, unter, vor, zwischen
Example (short):
- Ich gehe in die Schule. (accusative — movement, "Wohin?")
- Ich bin in der Schule. (dative — location, "Wo?")
When do I use accusative vs dative? (the simple test)
Wohin? — Accusative (direction / movement)
- Use accusative when the action involves movement toward a goal or changing position.
- Example: Ich lege das Buch auf den Tisch. (I put the book onto the table — movement onto the table)
Wo? — Dative (position / location)
- Use dative when describing where something is located (no movement).
- Example: Das Buch liegt auf dem Tisch. (The book lies on the table — it is already there)
A reliable classroom test: if you can answer with "Wohin?", use accusative. If you answer with "Wo?", use dative.
Why the difference matters (English comparison)
In English we often use the same preposition (e.g., "on the table") for both ideas. German marks the difference by changing the case (the article and sometimes the noun): "auf den Tisch" (acc.) vs "auf dem Tisch" (dat.). So you must watch the verb and whether there is movement.
How do I form the phrases (articles and endings)?
Here are the basic article forms you will see after a two-way preposition:
- Masculine: der (nom.) → den (acc.) → dem (dat.)
- Feminine: die → die (acc.) → der (dat.)
- Neuter: das → das (acc.) → dem (dat.)
- Plural: die → die (acc.) → den (dat.) [+ in dative plural most nouns take an extra -n: den Kindern]
Examples:
- Masculine: Ich lege den Stift auf den Tisch. / Der Stift liegt auf dem Tisch.
- Feminine: Sie hängt die Jacke an die Tür. / Die Jacke hängt an der Tür.
- Neuter: Er stellt das Glas in das Regal (ins Regal). / Das Glas steht im Regal.
- Plural: Stell die Stühle zwischen die Tische. / Die Stühle stehen zwischen den Tischen.
Contractions to watch for
- an + dem = am (only dative)
- in + dem = im (only dative)
- in + das = ins (often used for accusative/direction)
- auf das = aufs, an das = ans (colloquial for movement/direction)
Examples: Ich bin am Fenster. (dative) / Ich setze mich ans Fenster. (accusative)
Examples for each two-way preposition
- Dative (location): Das Bild hängt an der Wand. — The picture hangs on the wall.
- Accusative (direction): Er hängt das Bild an die Wand. — He hangs the picture on the wall.
- Dative contraction: Wir sitzen am Tisch. — We are sitting at the table.
- Accusative: Wir setzen uns an den Tisch. — We sit down at the table (move to the table).
- Dative (location): Das Glas steht auf dem Tisch. — The glass is on the table.
- Accusative (direction): Ich stelle das Glas auf den Tisch. — I put the glass onto the table.
- Event example: Ich bin auf dem Konzert. (dative) / Ich gehe aufs Konzert. (accusative)
- Dative: Der Hund liegt hinter dem Haus. — The dog is lying behind the house.
- Accusative: Der Hund läuft hinter das Haus. — The dog runs behind the house (moves to that place).
- Dative (location): Ich bin in der Küche. — I am in the kitchen.
- Accusative (direction): Ich gehe in die Küche. — I go into the kitchen.
- Contractions: Ich bin im Kino. / Ich gehe ins Kino.
- Dative: Das Sofa steht neben dem Fenster. — The sofa is next to the window.
- Accusative: Stell das Sofa neben das Fenster. — Put the sofa next to the window.
- Dative: Die Lampe hängt über dem Tisch. — The lamp hangs above the table.
- Accusative: Der Ball fliegt über das Dach. — The ball flies over the roof (movement across/over).
- Dative: Die Katze schläft unter dem Bett. — The cat sleeps under the bed.
- Accusative: Die Katze läuft unter das Bett. — The cat runs under the bed (moves there).
- Dative: Das Auto steht vor dem Haus. — The car is parked in front of the house.
- Accusative: Er stellt das Auto vor das Haus. — He places/drives the car to the front of the house.
- Dative: Der Stuhl steht zwischen den Tischen. — The chair is between the tables.
- Accusative: Stell den Stuhl zwischen die Tische. — Put the chair between the tables.
Verb pairs: movement vs location (very common source of mistakes)
Many German verbs come in contrasting pairs: one verb expresses placing/moving (accusative), and the other expresses being located (dative). Learning these pairs helps you choose the case.
- legen (acc.) → liegen (dat.)
- Sie legt das Buch auf das Bett. (accusative — she puts it there)
- Das Buch liegt auf dem Bett. (dative — the book is there)
- stellen (acc.) → stehen (dat.)
- Er stellt die Vase auf den Tisch. (acc.)
- Die Vase steht auf dem Tisch. (dat.)
- setzen (acc.) → sitzen (dat.)
- Ich setze mich auf den Stuhl. (acc.)
- Ich sitze auf dem Stuhl. (dat.)
- hängen (acc., transitive) → hängen (dat., intransitive) or hängen / aufhängen pair
- Ich hänge das Bild an die Wand. (acc., I hang it on the wall)
- Das Bild hängt an der Wand. (dat., the picture hangs there)
Common mistakes and how to avoid them
- Mistake: Using dative when you should use accusative (or vice versa).
- Fix: Ask "Wohin?" for direction (use accusative) or "Wo?" for position (use dative).
- Mistake: Confusing verb pairs (legen/liegen, stellen/stehen, setzen/sitzen, hängen/hängen).
- Fix: Decide whether the verb is placing/moving (accusative) or describing a state (dative).
- Mistake: Forgetting plural dative "-n" on nouns.
- Example: between the chairs → zwischen den Stühlen (note the -n on "Stühlen").
- Mistake: Translating directly from English.
- Fix: Remember English often uses one preposition for both meanings; German marks the difference with case.
- Mistake: Treating prepositional verbs or idioms the same as location prepositions.
- Example: Ich warte auf dich. ("auf" + accusative here is part of the verb phrase "warten auf" — not a location construction.)
- Fix: Learn common prepositional verbs separately; they can require a fixed case regardless of movement.
Quick tips and summary
- Ask "Wohin?" (where to?) → accusative (movement) ; Ask "Wo?" (where?) → dative (location).
- Learn the common two-way prepositions: an, auf, hinter, in, neben, über, unter, vor, zwischen.
- Memorize the article changes (der → den → dem, die → die → der, das → das → dem, die (pl.) → die → den (+n)).
- Pay attention to verb meaning: is it placing/moving (acc.) or stating position (dat.)?
- Watch contractions: am (an + dem), im (in + dem), ins (in + das), aufs/ans (colloquial for auf das / an das).
Glossary
- Wechselpräpositionen: Two-way prepositions that can take accusative or dative depending on meaning.
- Accusative (Akkusativ): The case used here for direction or movement toward a goal (answer: Wohin?).
- Dative (Dativ): The case used for location or position (answer: Wo?).
- Wohin?: German question for "where to?" (direction).
- Wo?: German question for "where?" (location).
- Transitive verb: A verb that acts on an object (often used for placing — tends to trigger accusative if the result is movement).
- Intransitive verb: A verb that does not take a direct object (often used for states — tends to be used with dative location).
If you work through sentences by asking "Wohin?" or "Wo?" and by noticing whether the verb describes movement, you'll reliably choose accusative or dative with two-way prepositions.