Which Case After Which Preposition

This is the page to bookmark. Every Polish preposition governs a case — it forces the noun (and its adjectives) into a specific form — and getting the case right after a preposition is the single most common day-to-day case decision you make. The good news: most prepositions take exactly one case, so it is pure memorisation by group. The catch English speakers must absorb: about a dozen prepositions take more than one case, and the case you choose selects the meaning. You do not learn "preposition = case"; you learn "preposition + meaning = case".

Prepositions that take only one case

Start here, because these are unambiguous: see the preposition, apply the case, done. Drill them in clusters by case.

Genitive prepositions

The genitive is the largest group — most prepositions of source, removal, lack, and relative position take it.

PrepositionMeaningExample
doto / into / untildo domu (home/to the house)
odfrom / sinceod rana (since morning)
bezwithoutbez cukru (without sugar)
dlafor (the benefit of)dla dzieci (for the kids)
uat someone's (place)u babci (at grandma's)
koło / oboknear / next toobok sklepu (next to the shop)
wedługaccording towedług mnie (in my opinion)
podczasduringpodczas lekcji (during the lesson)
opróczexcept / besidesoprócz Anny (except Anna)
naprzeciwkooppositenaprzeciwko poczty (across from the post office)

Idę do lekarza, a potem wracam od razu do domu.

I'm going to the doctor's, and then coming straight back home. (do → genitive: lekarza, domu)

Kawa bez cukru i mleka, poproszę.

A coffee without sugar or milk, please. (bez → genitive: cukru, mleka)

Dative prepositions

A small, closed set — worth memorising as a unit because the dative is otherwise rare after prepositions.

PrepositionMeaningExample
dziękithanks todzięki tobie (thanks to you)
przeciwko / przeciwagainstprzeciwko rządowi (against the government)
wbrewcontrary to / againstwbrew zasadom (against the rules)
kutowards (literary)ku morzu (towards the sea)

Dzięki tobie zdążyłem na pociąg.

Thanks to you I made the train. (dzięki → dative: tobie)

Zrobił to wbrew radom rodziców.

He did it against his parents' advice. (wbrew → dative: radom)

Prepositions that switch case to switch meaning

Now the heart of the matter. These prepositions take two (or even three) cases, and the case is not free — it is dictated by which meaning you intend. This is genuinely hard because English uses one word for both meanings. Study the contrasts as pairs.

z — genitive ("from / out of") vs instrumental ("with")

The same little word splits cleanly by case. Genitive z = source/origin; instrumental z = accompaniment.

Wracam z pracy.

I'm coming back from work. (z + genitive = from)

Rozmawiam z szefem.

I'm talking with the boss. (z + instrumental = with)

na — accusative (motion/goal) vs locative (location)

na + accusative = "onto / to (an event or surface)"; na + locative = "on / at". This is the headline case of the motion-vs-location alternation.

Idę na pocztę.

I'm going to the post office. (na + accusative = motion toward)

Jestem na poczcie.

I'm at the post office. (na + locative = static location)

w — accusative (into / on a day) vs locative (in / inside)

w + locative = "inside a place"; w + accusative carries motion ("into") in some set phrases and, importantly, the days of the week (w poniedziałek "on Monday").

Mieszkam w Krakowie.

I live in Kraków. (w + locative = location)

Spotkajmy się w piątek.

Let's meet on Friday. (w + accusative = day of the week)

za — accusative (price / "in" + future time) vs instrumental (behind) vs genitive (during an era)

za is the most three-faced of all. Accusative for price and "in X minutes"; instrumental for physical "behind"; genitive for a historical "in the time of".

Kupiłem to za dwadzieścia złotych.

I bought it for twenty zloty. (za + accusative = price)

Autobus przyjedzie za pięć minut.

The bus will come in five minutes. (za + accusative = in + future time)

Ogród jest za domem.

The garden is behind the house. (za + instrumental = location 'behind')

nad / pod / przed / między — accusative (motion to) vs instrumental (static)

These spatial prepositions follow the same rule as a family: accusative when you move to the position, instrumental when you simply are there.

Jadę nad morze.

I'm going to the seaside. (nad + accusative = motion to)

Spędzam wakacje nad morzem.

I'm spending my holiday at the seaside. (nad + instrumental = static location)

Kot wszedł pod łóżko.

The cat went under the bed. (pod + accusative = motion under)

Kot śpi pod łóżkiem.

The cat is sleeping under the bed. (pod + instrumental = static location)

o — accusative ("ask for / by an amount") vs locative ("about")

o + locative = "about / concerning"; o + accusative = "ask/request for" and "by (a margin)".

Rozmawialiśmy o tobie.

We were talking about you. (o + locative = about)

Poprosiłem o rachunek.

I asked for the bill. (o + accusative = request for)

po — accusative ("(go) fetch / for") vs locative ("after / around")

po + accusative = "to get/fetch"; po + locative = "after" (time) and "around/along" (movement over a surface).

Wyszedłem po chleb.

I went out to get bread. (po + accusative = fetch)

Po pracy idziemy na kawę.

After work we're going for coffee. (po + locative = after)

The master reference table

Case forcedSingle-case prepositionsMulti-case prepositions (this meaning)
Genitivedo, od, bez, dla, u, koło, obok, według, podczas, oprócz, naprzeciwkoz (from), za (in the era of)
Dativedzięki, przeciwko, wbrew, ku
Accusativeprzez (through/by/for-duration)na (onto/to), w (day/into), za (price; in+time), o (ask for), po (fetch), nad/pod/przed/między (motion to)
Instrumentalpoza (besides/outside)z (with), nad/pod/przed/za/między (static location)
Locativeprzy (next to / by)w (in), na (on/at), o (about), po (after/around)
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Notice the locative is the only case that never appears without a preposition — it is always triggered by w, na, o, przy, or po. So whenever you see one of those five in its "location / about / after" meaning, the noun is locative, full stop.
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The mental shortcut for the multi-case prepositions: accusative = movement or transaction (going to, paying for, asking for, fetching, in-X-minutes), and locative/instrumental = rest (being at, being behind, being about). Almost every switch reduces to "is something moving / changing hands, or is it just sitting there?"

Common Mistakes

Using the locative after a motion na/w (or vice versa). This is the number-one preposition error and it has its own dedicated page. Motion takes the accusative.

❌ Idę na poczcie.

Incorrect — motion 'to' needs the accusative: na pocztę.

✅ Idę na pocztę.

I'm going to the post office.

Putting "with" z into the genitive (treating it like English). z + instrumental means "with"; z + genitive means "from". Learners default to one form for both.

❌ Idę do kina z mojego brata.

Incorrect — 'with my brother' needs the instrumental: z moim bratem.

✅ Idę do kina z moim bratem.

I'm going to the cinema with my brother.

Leaving the noun in the nominative after a preposition. English prepositions don't change the noun ("to the house"), so beginners forget Polish does.

❌ Książka jest dla mama.

Incorrect — dla forces the genitive: dla mamy.

✅ Książka jest dla mamy.

The book is for mom.

Using o + accusative for "about". "Talk about" feels like a direct object to English ears, but "about" is o + locative.

❌ Myślę o ciebie.

Incorrect — 'about you' is locative: o tobie.

✅ Myślę o tobie.

I'm thinking about you.

Key Takeaways

  • Every preposition governs a case; most take exactly one — memorise them in case-clusters.
  • The genitive group is the biggest (do, od, bez, dla, u, według…); the dative group is tiny (dzięki, przeciwko, wbrew, ku).
  • About a dozen prepositions are multi-case, and the case chooses the meaning: z
    • gen = from / + instr = with; na/w/za/nad/pod…
      • acc = motion / + loc-instr = location; o
        • acc = ask for / + loc = about.
  • The shortcut: accusative = movement or transaction; locative/instrumental = rest.
  • The locative appears only after prepositions — never bare.

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