动词过去式
规则过去式 1.+ed 2.+d
3.y变i+ed 4.双写+ed
不规则过去式1.am,is 2.are 3.do 4.can 5.have 6.go 7.take 8.see 9.get 10.tell 11.lose 12.make 13.give 14.sit 15.swim 16.sing 17.drink 18.write 19.bring 20.fly 21.catch 22.fall 23.think 24.say 25.come 26.become 27.put 28.cut 例： show live study slip was were did could had went took saw got told lost made gave sat swam sang drank wrote brought flew caught fell thought said came became put cut
showed lived studied slipped
29.read 30.wear 31.leave 32.drive 33.stand 34.draw 35.grow 36.know 37.meet 38.teach 39.eat 40.speak 41.keep 42.sweep 43.sleep 44.find 45.buy 46.build 47.feel 48.spell 49.hear 50.let 51.ride 52.ring 53.run 54.win
look looked like liked cry cried stop stopped read wore left drove stood drew grew knew met taught ate spoke kept swept slept found bought built felt spelt heard let rode rang ran won
