1.am,is          was               2.keep                kept
3.are             were              4.let                 let
5.become     became            6.make              made
7.begin        began             8.meet               met
9.bite           bit               10.put                put
11.blow       blew              12.read               read
13.buy          bought            14.ride               rode
15.catch      caught            16.run               ran
17.come      came              18.say               said
19.cost        cost              20.see               saw
21.cut          cut               22.sing             sang
23.dig          dug               24.sit                sat
25.do           did               26.sleep           slept
27.draw     drew              28.speak         spoke
29.drink     drank             30.sweep         swept
31.eat        ate               32.take           took
33.fall        fell              34.teach          taught
35.feed       fed               36.tell              told
37.feel        felt              38.think          thought
39.fly          flew              40.throw        threw
41.forget      forgot            42.understand    understood
43.get          got               44.give          gave
45.wake       woke                46.go            went
47.wear        wore                48.grow       grew
49.win          won                 50.have/has   had
51.write       wrote               52.know       knew