How do we know which word dance we're currently dancing? I can generally understand these sentences but I'm hopeless when it comes to knowing what case you're in and what's supposed to follow. Why do their have to be so many different ways to say "this" or "that"?
To what question? About "Kochasz tego dziecko"? Well, it's definitely wrong. "kochasz" takes Accusative, the Accusative form of neuter noun phrases is identical to the Nominative one, and we arrive at super simple sentence "Kochasz to dziecko?".