Genitive case
A2 Dopełniacz 15 / 52
In short
The genitive (Polish dopełniacz) is the busiest case in Polish. It answers kogo? (“of whom?”) and czego? (“of what?”). You use it to show possession (książka brata = “the brother’s book”), after quantity words and many numbers, after a long list of prepositions (do, od, z, bez, dla), and - crucially - as the object of a negated verb. Learn it early: you will need it in almost every sentence you build.
The rule
The genitive marks what a thing belongs to or comes from, how much of something there is, and what is absent. Its ending depends on gender, and for masculine nouns on animacy and the individual word.
Possession and “of”
Polish has no word for “of” and no apostrophe-s. The owner simply goes into the genitive, after the thing owned: samochód ojca (“father’s car”), koniec filmu (“the end of the film”).
After quantity and negation
Words of amount take the genitive: dużo czasu (“a lot of time”), kilogram cukru (“a kilo of sugar”), szklanka wody (“a glass of water”). And the object of a negated verb switches out of the accusative into the genitive - the topic below.
Genitive of negation - nie ma, nie mam
This is the single rule A2 learners trip on most. When you negate a transitive verb, its direct object leaves the accusative and takes the genitive:
- Mam czas (“I have time”) -> Nie mam czasu (“I do not have time”).
- Widzę psa (“I see a dog”) -> Nie widzę psa (already genitive-like, so it looks the same).
- Czytam książkę (“I am reading a book”) -> Nie czytam książki.
The frozen phrase nie ma means “there is no / there isn’t / (someone) is not here”. It is the negated, impersonal form of jest/są, and whatever is missing goes into the genitive: Nie ma czasu (“there’s no time”), Nie ma Adama (“Adam isn’t here”), Nie ma problemu (“no problem”). Its counterpart in the affirmative uses the nominative (Jest czas / Jest Adam), so the case literally flips when you negate. In the past it becomes nie było + genitive, and in the future nie będzie + genitive: Nie było czasu, Nie będzie problemu.
Forms & patterns
Singular endings by gender
| Gender | Nominative | Genitive | Ending |
|---|---|---|---|
| Masc. animate | pies | psa | -a |
| Masc. animate | student | studenta | -a |
| Masc. animate | brat | brata | -a |
| Masc. inanimate | chleb | chleba | -a |
| Masc. inanimate | dom | domu | -u |
| Masc. inanimate | stół | stołu | -u |
| Masc. inanimate | samochód | samochodu | -u |
| Feminine (-a) | kawa | kawy | -a -> -y |
| Feminine (-a) | książka | książki | -a -> -i (after k/g) |
| Feminine (cons.) | noc | nocy | + -y |
| Neuter | okno | okna | -o -> -a |
| Neuter | piwo | piwa | -o -> -a |
| Neuter | dziecko | dziecka | -o -> -a |
Masculine singular is the tricky one. Animate nouns (people, animals) almost always take -a. Inanimate nouns split between -a and -u and you must learn each word: concrete/countable and many food words lean to -a (chleb -> chleba, ser -> sera), while abstracts, masses, places and borrowings lean to -u (czas -> czasu, dom -> domu, problem -> problemu, telefon -> telefonu).
Feminine -a becomes -y, but after k or g spelling forces -i: matka -> matki, droga -> drogi. Consonant-final feminines add -y/-i: noc -> nocy, mysz -> myszy.
Watch the same vowel/consonant shifts you met in the accusative: pies -> psa (the e drops), stół -> stołu and samochód -> samochodu (ó -> o, i.e. the o-kreskowane becomes plain o).
Plural genitive (overview)
| Gender | Nom. sg. | Gen. pl. | Ending |
|---|---|---|---|
| Masculine | student | studentów | -ów |
| Masculine | dom | domów | -ów |
| Masculine (soft) | nauczyciel | nauczycieli | -i |
| Feminine | kobieta | kobiet | zero |
| Feminine | książka | książek | zero (+ inserted -e-) |
| Neuter | okno | okien | zero (+ inserted -e-) |
| Neuter | słowo | słów | zero |
Masculine nouns usually take -ów; soft-stem ones take -i/-y. Feminine and neuter nouns typically take a zero ending (bare stem), often with an inserted -e- to break up the final consonant cluster: książka -> książek, okno -> okien.
The case flip under negation
| Affirmative (accusative) | Negated (genitive) |
|---|---|
| Mam czas. | Nie mam czasu. |
| Mam kawę. | Nie mam kawy. |
| Czytam książkę. | Nie czytam książki. |
| Znam odpowiedź. | Nie znam odpowiedzi. |
| Jest czas. | Nie ma czasu. |
Examples
| Polski | English |
|---|---|
| To jest samochód ojca. | This is my father’s car. |
| Nie ma dzisiaj czasu. | There’s no time today. |
| Nie ma tu Adama. | Adam isn’t here. |
| Nie mam pieniędzy. | I don’t have any money. |
| Wypij szklankę wody. | Drink a glass of water. |
| Wracam z pracy do domu. | I’m coming home from work. |
| To prezent dla siostry. | This is a present for my sister. |
| Nie znam tej kobiety. | I don’t know that woman. |
| Kawa bez cukru, proszę. | Coffee without sugar, please. |
| Uczymy się języka polskiego. | We are learning Polish. |
Common mistakes
- Nie mam czas. -> Nie mam czasu. - the object of a negated verb takes the genitive, not the accusative.
- Nie ma Adam. -> Nie ma Adama. - what is absent after nie ma goes into the genitive.
- Nie widzę pies. -> Nie widzę psa. - negation still forces the genitive (here it matches the animate accusative).
- samochód ojcu -> samochód ojca - possession is genitive (ojca), not dative (ojcu).
- do dom -> do domu - do governs the genitive; dom is inanimate with the -u ending.
- dużo czas -> dużo czasu - quantity words like dużo require the genitive.
- książka bratu -> książka brata - “the brother’s book” is genitive brata.
Tips
- Memory hook for negation: negate the verb, genitive the object. If a positive sentence had an accusative object, its negative twin has a genitive one.
- nie ma is a fixed unit meaning “there isn’t / isn’t here” - it never changes for person or number, and it is always followed by the genitive: nie ma mleka, nie ma ludzi, nie ma mnie.
- Its tense partners keep the same rule: past nie było + genitive, future nie będzie + genitive.
- For masculine inanimate -a vs -u, a rough guide: countable objects and many foods -> -a (chleba, sera, banana); abstracts, liquids, places and loanwords -> -u (czasu, soku, domu, hotelu). When unsure, check the dictionary - this pair really must be learned per word.
- The genitive is the door to prepositions: do, od, z/ze, bez, dla, u, obok, koło, według, wokół all take it. Learn the case with these little words attached and it will stick.