I don't think its possible to learn english in its entirety in 3 days. Although the english language may not be as complex (with regards to grammar) as other languages it's still not an easy language to grasp. 3 days is a short period of time to fully learn any language and anybody who tells you otherwise is a liar. Unless of course you just want to learn a few key phrases to help you whilst you're travelling through an English speaking country. Then in this case, 3 days may be enough time.

first of all: who can teach me english in 3 days 3 days!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! dont u see it's difficult ? im a teacher and for me it's very difficult i think u need a magician not a teacher anyway as they say nothing is impossible i hope u find someone who can do this