Verb conjugation of "constitute" in English

Mr. Kohler, Ms. Johansen, in June I will be in Darmstadt for several days and would like to meet you both. Are you in the week of June 16 to June 20 in Germany? I think I also bring gifts.
Was that all? I was sure that I had a lot more mistakes, because I did not know how to express myself properly. Maybe I am a natural born talent. I am just kidding. Let me know if you need something else.
I have learned German for one year and I would like to intensify my studies. Do not know how yet... It is very difficult at my age to start new projects in life. I am over 75, did I tell ya...