Verb conjugation of "expend" in English

I hope you you had a successful week in Dortmund. Because of the bad weather at the last moment I could not get on my flight to Dusseldorf and I have stayed home. I was afraid to fly.
Are you currently buried in a lot of work? I am not, because the financial crisis has put me back on hold. I do not work, so I have time for going out in the evening and being online.
I speak a little English. I would be happy to teach you German as well. May I can introduce myself? My name is Jürgen and I live in Dusseldorf. 25 years ago I was born in Mannheim, Germany.