Verb conjugation of "endeavor" in English

I have been living in Holland for the last 14 years and I know the mentality very well. Holland is a small country, everybody knows everybody, so if we want to succeed, we must seize the opportunity.
I had a few problems with my Mac. I guess I will have to buy a new one in the near future. I have already found the right product, and I will soon order it from the local hardware dealer.
I do not like London, my home is in southern England, and there is a lot of work there too. A lot of people are moving to London just for work. I've been here for 10 years and I am studying chemistry.