"I respect every human who is a friend of animals."

Translation: Szanuję każdego człowieka będącego przyjacielem zwierząt.

[zagadka314]

Agh now I want beza

[SonofMaat]

I'm not totally sure each time why it is Genitive, or in another sentence it is Accusative etc. Any tips?

[Jellei]

Generally the direct object takes Accusative, but you need to learn those verbs/prepositions that take Genitive.

https://www.duolingo.com/comment/16296174 - maybe something here will be helpful.