Verb conjugation of "verweilen" in German

After testing the audio lab at the University of Bern, other universities such as the one in Zurich, ore the one in Geneva have shown interest. Of course, all this takes time. I will let you know.
You have to be careful when you go on summer vacation. There are many dangers but the most dangerous one is the sun itself, because if you're not careful it may harm you. People underestimate the rays.
It was a short but nice letter from you. I hope that you had a great vacation. I realize that I should practice at least half an hour a day. Vocabulix helps to learn Spanish vocabulary.