1. am /is – was;
2. are – were;
3. buy—bought;
4. come—came;
5. drink—drank;
6. eat—ate;
7. feel—felt;
8. fly—flew;
9. do—did;
10. get – got;
11. go—went;
12. have—had;
13. know—knew;
14. leave—left;
15. make—made;
16. ride—rode;
17. run—ran;
18. say—said;
19. see—saw;
20. send—sent;
21. sing—sang;
22. sit—sat;
23. smell~smelt;
24.read~read
25.let~let
26.catch~caught
27.build~built
28.find~found
29.can~could
30.dig~dug
31. begin~began
32.fall~fell
33.swim~swam
34.sing~sang
35. drink~drank
36.drive~drove
37.sell~sold
38.say~said
39.stand~stood
40.break~broke
41.make~made
42.see~saw
43.send-sent
44.wake~woke
45.speak~spoke
46.forget~forgot
47.forgive~forgave
48.find~found
49.hear~heard
50.teach~taught
is/am-was,are-were,go-went,have-had,get-got,write-wrote,take-took,run-ran,eat-ate,buy-bought,send-sent,swim-swam,ride-rode,fly-flew,come-came,let-let,feed-fed,lie-lay,lend-lent,bring-brought,do-did,see-saw,speak-spoke,stand-stood,sit-sat,teach-taught,give-gave
