in Polish
Она и по-польски говорит?
Does she speak Polish too?
Ты говоришь по-немецки, а я по-польски.
You speak German and I speak Polish.
Я не говорю по-польски.
I don't speak Polish.
Вы говорите по-польски?
Do you speak Polish?
Я не понимаю по-польски.
I don't understand Polish.