Noun cases in Polish, Examples and how to use it.

Does someone can help me with nouns cases? Like, I know what each case means, Genitive, Nominative and etc, but how can I know when to change the stems in each case?

an assumption : In accusative case you put the letter "ą" in the end of the word (just an example). PLEASE ANYBODY HELP ME, I NEED THE EXAMPLES IN ALL THE NOUN CASES. I don't wanna know what it means, just the rules, how to use it, and examples. I'll be very very thankful (:

Have you checked: polish-dictionary.com (there are some good examples).

It doesn't have the things I need ;-;
But thank you

Polish is more difficult than English; sometimes there are more exceptions than the rule itself ; ). If you post some example and don't understand it, we'll try to explain.

In fact, I understand nothing about Polish, I can't understand without the noun cases, and ALL I need is just explanations about it. And I can't find it nowhere. How I said, I don't wanna know what mean each case, I just wanna know how to use it. .-.

I am just learning so these may not be correct but if it's any help ;

(Masculine)
(nom)sklep jest dobry
(acc)widze sklep
(dat)Daję pieniądze sklepowi
(gen)Zamknienta sklep nie jest dobrego
(Ins)Hotel jest z otwartym sklepom
(loc)On jest z sklepie

(Feminine)
Kobieta jest miła
widze miłą kobietę
Daję pomoc kobiecie
To nie jest kobiety
Mowie o kobiecie

(Neuter)
muzeum jest dobre
widze muzeum
daję pienandze muzeum
to nie jest muzeum
on jest w muzeum

Sorry, masculine genitive= sklepu and locative W sklepie I think. So confusing !

widzę


This is wrong, I can't understand this sentence.

Genitive should be like: zamkniętego sklepu


Instrumental - otwartym/zamkniętym sklepem


widzę miłą kobietę


To nie jest kobieta


Mówię o kobiecie


pieniądze

the 'Muzeum' is an easy example of neuter to declension

Check here - it's worth to read, the Polish Declension is clearly presented:

grzegorj.w.interia.pl/gram/deklin00.html

Thanks Looker, for the corrections and the link :)