Why is "ta žena se stará o našého kluk" wrong? Whats the accusative form of kluk if i dont want to use chlapce?
It is the pán paradigm.
i wrote "ta žena stará se o našeho chlapce" and it was wrong. Is here so important that "se" is before "stara"?
Yes. "Se" has to be in the second position in the clause.
Is "se" always before the verb? (Besides at the beginning of the sentence)
See the Tips and ntes about clitics and the second position rule. More can be found in https://forum.duolingo.com/comment/31466920