http://www.engvid.com/
 "Lay" and "lie" are two of the most commonly confused words in the 
English language. Watch this lesson to learn the difference between 
these words, along with tricks to ensure that you don't confuse them 
again. At the end of the video, take the quiz so you can test your 
understanding. 
http://www.engvid.com/lie-or-lay/https://www.youtube.com/watch?v=XbZ7vrJclTo