Verb conjugation of "investigate" in English

Can we meet on the March 4 or 5 (Tuesday or Wednesday) in Cologne? I am delighted to see you again soon. We are in the beginning of March and we look forward to seeing you next week. Here's a photo.
I am a computer scientist and I also have a small restaurant with my younger sister (she is also already 53). You can come and visit, I will buy you a drink and we could chat a little.
I need to learn a lot of Spanish because I want to study at the university of Madrid. In Switzerland, I studied law, but after 2 years I have switched to medicine: to help people, rather than you know....