http://www.engvid.com/ "A while" or "awhile"? These words sound almost exactly the same, but one is a noun, and one is an adverb. In this lesson for advanced students, I'll teach you when to use each. Even native speakers get this wrong, so it might take a while, but if you watch the lesson and do the quiz, you will get it. http://www.engvid.com/a-while-or-awhile/
did not know the difference between these two concepts, you find it is good that we made a videopara others can practice.
You are an excellent teacher and I hope you continue making more videos for long.