Verb conjugation of "impose" in English

It would be an advantage if you could send it via DHL, UPS or another Currier, because the parcel was lost once when we sent it with regular mail. Please send me a reference number after you send it.
I was born in 1967 in Zurich, Switzerland. It is a small city, but not as small as Basel or Geneva. I grew up in a suburb of Zurich. When I was 12, I moved with my parents to Spain.
Thank you for your kind message. I have not done anything for my Spanish because I have too much work at my job. I might write you a letter, but I'm so busy at work that I can't afford other hobbies.