Introduction to Prepositions and Cases
In German, prepositions are words that link nouns, pronouns, or phrases to other parts of the sentence. Unlike English, German prepositions always require a specific grammatical case for the following noun or pronoun. Understanding which case a preposition governs is essential for correct sentence construction.
There are four cases in German: nominative, accusative, dative, and genitive. Most prepositions govern either accusative, dative, genitive, or sometimes two cases depending on context.
Accusative Prepositions
Accusative prepositions always require the accusative case for their object. They usually indicate movement towards a destination or goal.
Common accusative prepositions include: durch (through), für (for), gegen (against), ohne (without), and um (around).
Ich gehe durch den Park.
Ish geh-uh doorkh den park.
I am walking through the park.
Das Geschenk ist für dich.
Das geh-shenk ist für dikh.
The gift is for you.
Dative Prepositions
Dative prepositions always require the dative case. They often express location or position rather than movement.
Common dative prepositions include: aus (from/out of), bei (at/near), mit (with), nach (after/to), seit (since), von (from/of), and zu (to).
Ich wohne bei meiner Freundin.
Ish voh-nuh by my-ner frohnd-in.
I live at my (female) friend's place.
Er fährt mit dem Bus.
Air fährt mit dem boos.
He travels by bus.
Two-way (Wechsel) Prepositions
Two-way prepositions can take either the accusative or dative case depending on whether the sentence implies movement or location.
If the preposition indicates movement towards a place, use the accusative case. If it indicates a static position or location, use the dative case.
Common two-way prepositions are: an (at/on), auf (on), hinter (behind), in (in/into), neben (next to), über (over/about), unter (under), vor (in front of), and zwischen (between).
| Preposition | Movement (Accusative) | Location (Dative) |
|---|---|---|
| in | Ich gehe in das Haus. | Ich bin in dem Haus. |
Wir setzen uns auf die Bank.
Veer zet-sen uns auf dee bank.
We sit down on the bench. (movement - accusative)
Das Buch liegt auf dem Tisch.
Das book ligt auf dem tish.
The book lies on the table. (location - dative)
Genitive Prepositions
Genitive prepositions govern the genitive case, which often shows possession or close relationships. The genitive case is less common in everyday German but is important for formal writing and literature.
Common genitive prepositions include: während (during), trotz (despite), wegen (because of), and innerhalb (inside of).
Während des Films hat es geregnet.
Veh-rend des films hat es geh-reg-net.
It rained during the movie.
Trotz des schlechten Wetters gehen wir spazieren.
Trotz des shlekhten vet-ters geh-en veer shpa-tsee-ren.
Despite the bad weather, we go for a walk.
Common Mistakes with Preposition Cases
A frequent error is using the wrong case after a preposition, especially with two-way prepositions. Remember to focus on whether the sentence expresses movement or location.
Another common mistake is confusing dative and genitive prepositions, as some genitive forms are replaced by dative in spoken German.
Incorrect: Ich gehe in dem Haus.
Ish geh-uh in dem haus.
I am going in the house. (Incorrect case)
Correct: Ich gehe in das Haus.
Ish geh-uh in das haus.
I am going into the house. (Correct accusative case)
Practice Examples
Try identifying the cases governed by the prepositions in the following sentences:
Sie fährt mit dem Fahrrad zur Arbeit.
Zee fährt mit dem fah-rad tsur ar-bait.
She rides the bike to work.
Answer:mit requires dative.
Wir gehen um den See herum spazieren.
Veer geh-en um den zay he-rum shpa-tsee-ren.
We are walking around the lake.
Answer:um requires accusative.
Das Bild hängt an der Wand.
Das bilt hängt an der vant.
The picture hangs on the wall.
Answer:an with location requires dative.
Tips for Remembering Rules
- Memorize common prepositions by case groupings for faster recall.
- Focus on the verb’s meaning: does it imply movement? Use accusative. If not, use dative for two-way prepositions.
- Practice with real sentences and try to identify the case used after each preposition.
- Use mnemonic devices, for example, "FUDGEBOW" for dative prepositions (für, um, durch, gegen, entlang, bis, ohne, wider - note: some are accusative; this is just an example mnemonic for practice).
- Remember that genitive prepositions are mostly formal,dative is often used in spoken German instead.