"I have to study!"
Translation:Muszę się uczyć!
Well, it would mean that you have to be a student of a university. When you're a student of Law, let's say, that means you "studiujesz prawo", but when exams are coming, "uczysz się do egzaminu".
The question is, whether "I have to be a student of a university" version would be put by a native in the same English wording or not...