This is one of the wonderful things about English (and other European languages that I have knowledge of).
My wife (also referenced in this thread here http://news.ycombinator.com/item?id=1439092 ) struggled with English at first until an ESL teacher showed her how easy it is to manufacture noun, verb, adjective, or adverb forms from a single base. She had been working hard memorizing every word form that was taught her until somebody showed her that the way English actually works is generally pretty logical. She says her vocabulary tripled overnight.
My wife (also referenced in this thread here http://news.ycombinator.com/item?id=1439092 ) struggled with English at first until an ESL teacher showed her how easy it is to manufacture noun, verb, adjective, or adverb forms from a single base. She had been working hard memorizing every word form that was taught her until somebody showed her that the way English actually works is generally pretty logical. She says her vocabulary tripled overnight.