http://news.stheadline.com/dailynews/headline_news_detail_columnist.asp?id=76677&section_name=wtt&kw=13

http://www.myenglishteacher.net/irregular_verbs.html

lay laid laid
lie (down) lay lain

http://news.sina.com.tw/magazine/article/9270.html

http://www.nownews.com/n/2013/09/17/950252

http://news.stheadline.com/dailynews/headline_news_detail_columnist.asp?id=213512&section_name=wtt&kw=136

http://paper.wenweipo.com/2011/01/01/WY1101010001.htm