Lecture 2: Past tenses

http://www.slideshare.net/yolyordam/simple-past-tense-presentation-874481
http://www.slideshare.net/ammfurtado/past-simple-293838
http://www.slideshare.net/lizamr1/pastsimple-397947

http://www.youtube.com/watch?v=J5E9SWg6_fw
http://www.youtube.com/watch?v=TPgNEBB7hNE&feature=related
http://www.youtube.com/watch?v=wXnDmvBBHHs&feature=related

http://www.slideshare.net/rosarioa.slide/past-continuous-form-and-use
http://www.slideshare.net/Gemina/past-continuous-tense-presentation

http://www.youtube.com/watch?v=1Fd0_iCd44A&feature=related
http://www.youtube.com/watch?v=pax1_XG_Fo8&feature=rec-LGOUT-exp_fresh+div-1r-6-HM