Translation of verwirken

I have started learning only one month ago, that was during the summer holidays, I want to go to Canada for three weeks and then participate in a course. I hope that I will improve it more or less.
The easiest way of writing sentences in Spanish and English is to communicate with other people by email or by chat. I found the different time forms quite in Spanish very confusing at the beginning and it was the most difficult part.
I agree with you that small cars are often very beautiful, such as Fiat and Skoda, however, bigger cars are safer. I think that old, used cars are usually unsafe. The safety standard changes all the time.