Translation of accidental in German

Sometimes you forget one word and this makes the entire sentence sound differently. That means that you need to read each email before sending it twice at least if you want to be on the safe side every time.
Spanish is very important and widespread. I want to improve my skills with the help of Vocabulix and its users. I'll be there looking for people and I hope that my new efforts will be helpful.
I owe it to my boss who allowed me to make many trips. In Argentina, I've been in many places, but unfortunately I have not seen enough of it yet. It is indeed a huge country, do you agree?