How do I know which case a preposition triggers?

Accusative prepositions (DOGFU) and dative prepositions always trigger the same case — memorise them as groups. Two-way prepositions depend on movement (accusative) vs location (dative). Genitive prepositions trigger genitive. See the German cases guide on this site for full article change tables.

What is the difference between zu and nach for "to"?

Nach is used for cities, countries (without an article), and directions: nach Berlin, nach Deutschland, nach links. Zu is used for people, specific places, and institutions: zum Arzt, zur Schule, zu meiner Freundin.

Can I use wegen with dative in formal writing?

In formal and written German, wegen takes the genitive: wegen des Wetters. In spoken and informal German, dative (wegen dem Wetter) is widely accepted. For exams and formal writing, use genitive.

Why does hängen appear in both accusative and dative examples?

There are two different verbs: hängen (weak, transitive) means to hang something — it triggers accusative because it involves placing. Hängen (strong, intransitive) means to be hanging — it takes dative because it describes a location. Context and conjugation distinguish them.

Do prepositions affect adjective endings?

Yes — because prepositions trigger a case, and adjective endings depend on the case. Mit dem alten Mann uses dative, so the adjective takes the weak dative ending -en. See the German adjective endings guide for the full rules.

What are the most important prepositions to learn first?

Start with the dative group (especially mit, zu, von, aus, bei, nach, seit) and the accusative group (DOGFU). These cover the vast majority of everyday German. Add the two-way prepositions next, and leave genitive prepositions until you are comfortable with the rest.

German Prepositions — The Complete Guide with Cases

Prepositions are small words with a big job. In, mit, für, auf, zu — they appear in almost every German sentence, and each one triggers a specific grammatical case. Get the preposition right but the case wrong, and the sentence sounds off to a native speaker.

The good news is that most German prepositions belong to fixed case groups. Once you know which group a preposition belongs to, the case follows automatically. This guide gives you the complete system — accusative, dative, genitive, and the two-way prepositions that use both — with full lists, clear rules, and real examples throughout.

If you haven't reviewed German cases yet, the German cases guide is the best place to start before working through this article.

Why prepositions matter for cases

In German, every noun in a sentence has a grammatical case — nominative, accusative, dative, or genitive. The case affects the article and sometimes the noun ending. Prepositions are one of the main triggers that determine which case a noun takes.

Ich gehe in die Stadt. — I am going into the city. (accusative — movement) Ich bin in der Stadt. — I am in the city. (dative — location)

Same preposition (in), same noun (Stadt), different case — because the situation is different. This is the core challenge of German prepositions, and this guide gives you the tools to handle it consistently.

Accusative prepositions

These prepositions always trigger the accusative case — no exceptions.

Preposition	Meaning	Example
durch	through	Er läuft durch den* Park.* — He runs through the park.
für	for	Das ist für den* Mann.* — That is for the man.
gegen	against / around (time)	Wir spielen gegen das* Team.* — We play against the team.
ohne	without	Sie kommt ohne einen* Regenschirm.* — She comes without an umbrella.
um	around / at (time)	Er geht um den* See.* — He walks around the lake.

Memory tip — DOGFU: Durch, Ohne, Gegen, Für, Um. These five prepositions are always accusative. Memorise the group, not each word individually.

Accusative article changes

Gender	Nominative	Accusative
Masculine	der / ein	den / einen
Feminine	die / eine	die / eine (no change)
Neuter	das / ein	das / ein (no change)
Plural	die	die (no change)

Only masculine articles change in the accusative. See the cases guide for the full table.

More accusative examples

Ich kaufe ein Geschenk für meine Mutter. — I am buying a gift for my mother. Sie fährt durch die Stadt. — She drives through the city. Wir sind gegen den Plan. — We are against the plan. Er kommt ohne seinen Bruder. — He comes without his brother. Der Bus fährt um den Bahnhof. — The bus goes around the station.

Dative prepositions

These prepositions always trigger the dative case — no exceptions.

Preposition	Meaning	Example
aus	out of / from	Sie kommt aus der* Schweiz.* — She comes from Switzerland.
bei	at / near / with	Er wohnt bei seinem* Freund.* — He lives with his friend.
mit	with	Ich fahre mit dem* Zug.* — I travel by train.
nach	after / to (cities/countries)	Wir fliegen nach* Berlin.* — We fly to Berlin.
seit	since / for (time)	Sie lernt seit einem* Jahr Deutsch.* — She has been learning German for a year.
von	from / by / of	Das ist ein Brief von meinem* Vater.* — That is a letter from my father.
zu	to (people/places)	Ich gehe zur* (zu der) Schule.* — I go to school.
gegenüber	opposite / across from	Das Café ist dem* Bahnhof gegenüber.* — The café is opposite the station.

Memory tip: Aus, Bei, Mit, Nach, Seit, Von, Zu, plus gegenüber — all dative, always.

Dative article changes

Gender	Nominative	Dative
Masculine	der / ein	dem / einem
Feminine	die / eine	der / einer
Neuter	das / ein	dem / einem
Plural	die	den

Common contractions

German frequently contracts dative prepositions with the definite article:

Full form	Contraction	Meaning
zu + dem	zum	to the
zu + der	zur	to the
von + dem	vom	from the
bei + dem	beim	at the
an + dem	am	at the / on the
in + dem	im	in the

These contractions are standard in everyday speech and writing — use them freely.

Ich gehe zum Arzt. — I am going to the doctor. Er kommt vom Supermarkt. — He is coming from the supermarket. Wir treffen uns beim Café. — We meet at the café.

More dative examples

Sie fährt mit der U-Bahn. — She travels by metro. Er lernt Deutsch seit zwei Jahren. — He has been learning German for two years. Das Paket ist von meiner Schwester. — The parcel is from my sister. Wir gehen zur Universität. — We are going to the university. Das Restaurant ist gegenüber dem Hotel. — The restaurant is opposite the hotel.

Two-way prepositions

Two-way prepositions are the most important — and most challenging — group in German. They can trigger either accusative or dative depending on the meaning of the sentence.

The rule:

Accusative — movement toward a destination (answering wohin? — where to?)
Dative — location or rest in a place (answering wo? — where?)

Preposition	Meaning
an	at / on (vertical surfaces, edges)
auf	on (horizontal surfaces)
hinter	behind
in	in / into
neben	next to / beside
über	over / above / across
unter	under / below / among
vor	in front of / before
zwischen	between

Accusative vs dative — side by side

Accusative (wohin? — movement)	Dative (wo? — location)
Ich lege das Buch auf den* Tisch.*	Das Buch liegt auf dem* Tisch.*
I put the book onto the table.	The book is lying on the table.
Sie hängt das Bild an die* Wand.*	Das Bild hängt an der* Wand.*
She hangs the picture on the wall.	The picture hangs on the wall.
Er geht in die* Küche.*	Er ist in der* Küche.*
He goes into the kitchen.	He is in the kitchen.
Die Katze springt unter den* Tisch.*	Die Katze sitzt unter dem* Tisch.*
The cat jumps under the table.	The cat sits under the table.

Key verbs that signal accusative (movement): legen (to lay), stellen (to place), hängen (to hang), setzen (to set), stecken (to put)

Key verbs that signal dative (location): liegen (to lie), stehen (to stand), hängen (to hang — be hanging), sitzen (to sit), stecken (to be stuck)

Note: hängen appears in both columns but works differently. hängen (weak verb) = to hang something (accusative, movement). hängen (strong verb) = to be hanging (dative, location). This pair is worth learning as a unit.

More two-way preposition examples

Wir fahren in die Berge. — We are going to the mountains. (accusative — movement) Wir sind in den Bergen. — We are in the mountains. (dative — location) Sie stellt die Vase auf den Tisch. — She places the vase on the table. (accusative) Die Vase steht auf dem Tisch. — The vase stands on the table. (dative) Das Kind läuft hinter das Haus. — The child runs behind the house. (accusative) Das Kind spielt hinter dem Haus. — The child plays behind the house. (dative)

Genitive prepositions

Genitive prepositions are most common in written and formal German. In spoken German, they are often replaced by dative constructions — but you will encounter them regularly in newspapers, books, and academic texts.

Preposition	Meaning	Example
wegen	because of	Er bleibt wegen des* Wetters zu Hause.* — He stays home because of the weather.
trotz	despite	Sie geht spazieren trotz des* Regens.* — She goes for a walk despite the rain.
während	during	Er schläft während des* Films.* — He sleeps during the film.
statt / anstatt	instead of	Ich nehme Tee statt des* Kaffees.* — I take tea instead of coffee.
innerhalb	inside / within	Das muss innerhalb einer* Woche fertig sein.* — This must be finished within a week.
außerhalb	outside of	Er wohnt außerhalb der* Stadt.* — He lives outside the city.

Genitive article forms

Gender	Genitive
Masculine	des (+ noun -s/-es)
Feminine	der
Neuter	des (+ noun -s/-es)
Plural	der

Note on spoken German: In casual speech, wegen and trotz are commonly used with dative: wegen dem Wetter, trotz dem Regen. Both forms exist in everyday usage; the genitive is more formal and correct in writing.

Prepositions with fixed meanings — common combinations

Some prepositions combine with specific verbs or adjectives to create fixed expressions. These are best learned as whole phrases:

Verb + preposition combinations

Combination	Meaning	Case
warten auf	to wait for	Accusative
sich freuen auf	to look forward to	Accusative
denken an	to think of/about	Accusative
sich erinnern an	to remember	Accusative
sprechen mit	to speak with	Dative
helfen bei	to help with	Dative
fragen nach	to ask about	Dative
gehören zu	to belong to	Dative
sich interessieren für	to be interested in	Accusative
sich ärgern über	to be annoyed about	Accusative

Ich warte auf den Bus. — I am waiting for the bus. Er denkt an seine Familie. — He thinks about his family. Sie spricht mit dem Lehrer. — She speaks with the teacher. Ich interessiere mich für die deutsche Sprache. — I am interested in the German language.

How to learn German prepositions effectively

1. Learn prepositions in case groups

Don't memorise prepositions in isolation. Learn the accusative group together (DOGFU), the dative group together, and the two-way group as a set. Grouping them makes the case automatic.

2. Master the two-way prepositions with the wohin/wo question

Every time you use a two-way preposition, ask: wohin? (movement = accusative) or wo? (location = dative). This question becomes second nature quickly.

3. Learn common contractions as fixed phrases

zum, zur, vom, beim, im, am — these contractions appear constantly in everyday German. Learn them as vocabulary items, not grammar rules.

4. Learn verb + preposition combinations as units

Warten auf, denken an, sprechen mit — treat these as fixed phrases to memorise, just like vocabulary. They don't always follow logical English equivalents.

5. Practise in sentences with the Article Trainer

Combine preposition practice with article and case exercises on Studygerman.io — including the German Article Trainer and preposition exercises. Reading and producing whole sentences — not just filling in tables — is what builds real fluency.

A 7-day plan to master German prepositions

Day	Focus
Day 1	Review accusative and dative cases — make sure article changes are solid
Day 2	Learn accusative prepositions (DOGFU) — write 5 sentences with each
Day 3	Learn dative prepositions — write 5 sentences, practise contractions (zum, vom, beim)
Day 4	Learn two-way prepositions — focus on the wohin/wo distinction with in, auf, an
Day 5	Practise two-way prepositions — compare accusative and dative pairs side by side
Day 6	Learn genitive prepositions and common verb + preposition combinations
Day 7	Mixed practice — do exercises, write a short paragraph using prepositions from all groups

Common mistakes to avoid

Mistake 1: Using accusative after dative prepositions

Ich fahre mit den Zug is wrong — mit is always dative: mit dem Zug. Fix this by drilling the dative preposition group until the case is automatic.

Mistake 2: Using dative for two-way prepositions when movement is involved

Ich gehe in dem Park is wrong for "I am going into the park" — movement requires accusative: in den Park. Save dative for Ich bin in dem Park (I am in the park).

Mistake 3: Forgetting contractions

Ich gehe zu dem Supermarkt is technically correct but sounds unnatural. Native speakers say zum Supermarkt. Use contractions whenever they exist.

Mistake 4: Translating prepositions directly from English

German prepositions don't always match their English equivalents. Auf can mean on, at, or to depending on context. Bei can mean at, near, or with. Learn prepositions in context, not as direct translations.

Mistake 5: Using genitive prepositions in casual speech

Wegen des Wetters is correct in writing, but in conversation wegen dem Wetter is perfectly natural and widely used. Both are acceptable — match the register to the situation.

Final thoughts

German prepositions are one of those topics where a clear system makes all the difference. Once you know that accusative prepositions are fixed, dative prepositions are fixed, and two-way prepositions follow the movement vs location rule, the number of decisions you need to make in real time drops dramatically.

Learn the groups, practise the contractions, and build verb + preposition combinations into your vocabulary from the start. Combined with solid knowledge of cases, verb conjugation, and adjective endings, prepositions complete the core grammar toolkit you need to move confidently through B1 and into B2.

Disclaimer: This article is for general information only. Preposition usage can vary by region and context. Always consult multiple resources and native speakers when learning German.