Study at vs. study university
I studied university.
RIGHT: I studied at university.
There are a few occasions in English when we use a preposition for something that Czech language doesn’t have one for. ‘Listen’ is one example. In English, we listen ‘to’ music, Czechs just say they listen music.
Another common one is related to studying. Czechs say, for example, „I study university in Brno.“ This is wrong in English. We don’t study ‘university’, we study ‘at’ university. The preposition is a very important word here.
The thing we study is a subject, like biology, maths or English literature. So we would say, „I study English Literature at university.“