Verb conjugation of "flog" in English

By the way: I have now met a man who claims he is an expert in deep snow skiing... I find that very impressive for someone with only 3 years of snowboarding experience. It is probably just showing off.
I have not been in eastern Germany for a long time, because I have never really had time to travel. What do you do for living and in your leisure time, like the weekends and evenings.
Now I am learning by other means, such as reading and writing. I can not begin with conjugation training because I lack the basic knowledge. How are you learning at this site and which is your best lesson?