Verb conjugation of "befassen" in German

It all depends on the language that you want to learn. For German it would be best to go to Berlin, as the pronunciation is classic there. Imagine going to Switzerland where they speak a different language.
In order to quickly become successful, one would have to change certain points, at least in my opinion: After 5 months of learning, I have still not found the grammar practice on which I should concentrate.
In winter it is a great place because you can ski. In the summer I like being in Paris because it is a very empty city in summer. The people head down to the coast, to Nice, Cannes and similar.