Verb conjugation of "abandon" 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.
We can help each other with these language studies, this is also the main purpose of Vocabulix. I have already got in touch with some other users. I can speak Italian, but my grammar is weak.
To answer your question I'm a college teacher but I am working now for a real estate agency. I'm also responsible for the finances. It's a very lucrative business but I hate it, most of the time.