Verb conjugation of "verzeichnen" in German

In May I'll be able to show the machine at an exhibition in the university. In addition, we can show it to all these university partner laboratories in the U.S., which are led by people who live here.
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.
Your German is very good. Of course, there are some mistakes here and there, but I think that all the students have some. Get yourself up and study a lot, that's the secret to success. Good luck.