The 'of / no / from' case: absence, possession, quantity
Grammar A1
What the Genitive does
The Genitive shows absence, possession, or amount. It answers kogo? czego? (of whom? of what?).
Absence: nie ma czasu - there's no time
Possession: samochód brata - brother's car
Quantity: szklanka wody - a glass of water
Nie ma mleka.
There's no milk.
To jest książka Anny.
This is Anna's book.
Signals that trigger Genitive
Memorize these triggers and half the work is done.
nie ma (there isn't) + Gen: nie ma czasu
Negated verbs: nie mam samochodu, nie widzę Anny
Prepositions: z, do, od, dla, bez, u, obok
Numbers 5+ and dużo/mało/trochę/ile: dużo ludzi
The negation rule is crucial: any direct object flips from Accusative to Genitive when the verb is negated. Mam czas → Nie mam czasu.
Jadę do Warszawy.
I'm going to Warsaw.
Kupuję kawę bez cukru.
I'm buying coffee without sugar.
Masculine singular: -a or -u
The trickiest part of the Genitive - two possible endings.
Group
Ending
Example
People & animals
-a
brat → brata, kot → kota
Tools, body parts, months
-a
nóż → noża, palec → palca, styczeń → stycznia
Abstract & uncountable
-u
czas → czasu, cukier → cukru, sport → sportu
Rule of thumb: -a for living things, tools, body parts, months, and currencies. -u for abstracts, liquids, materials, and feelings. Some common words break the pattern (chleb → chleba, dom → domu) - just memorize them.
Nie ma brata.
Brother isn't here.
Nie ma cukru.
There's no sugar.
Feminine singular: -y or -i
Much simpler than masculine - just watch the last consonant.
Group
Ending
Example
Default
-y
kawa → kawy, kobieta → kobiety
After k, g
-i
książka → książki, noga → nogi
After soft consonant
-i
ulica → ulicy, kuchnia → kuchni
If the word ends in -ka, -ga, use -i. If it ends in a soft consonant (like -nia, -cia), you also usually get -i. Everything else takes -y.
Szklanka wody, proszę.
A glass of water, please.
Nie ma książki.
The book isn't here.
Neuter singular: -a
Neuter nouns almost always take -a in the Genitive.
Group
Ending
Example
-o → -a
okno → okna
Nie ma okna.
-e → -a
mieszkanie → mieszkania
Szukam mieszkania.
-ę → -ęcia / -enia
dziecko → dziecka
Nie mamy dziecka.
'Dziecko' is neuter and follows the -o → -a rule in the singular. Its plural is famously irregular (dzieci).
Nie ma piwa.
There's no beer.
Kawa bez mleka.
Coffee without milk.
Plural Genitive: the trickiest form
Plural Genitive endings depend on the gender and are notoriously varied.
Group
Ending
Example
Masculine personal
-ów
studentów, Polaków, panów
Masc. non-personal
-ów / -y / -i
kotów, samochodów, dni
Feminine
zero ending
kobiet, książek, sióstr
Neuter
zero ending
okien, mieszkań, dzieci
Feminine and neuter often drop the final vowel, sometimes inserting an -e-: książka → książek, okno → okien. This is called the fleeting vowel.
Pięciu studentów jest w klasie.
Five students are in the class.
Dużo książek na stole.
Lots of books on the table.
Watch out: negation flips Accusative to Genitive
This is the #1 mistake foreigners make in Polish.
Mam kawę. (Acc) → Nie mam kawy. (Gen)
Widzę Annę. (Acc) → Nie widzę Anny. (Gen)
Lubię pizzę. (Acc) → Nie lubię pizzy. (Gen)
Any verb that took a direct object in Accusative switches its object to Genitive under negation. There are no exceptions.