Qúa khứ Qúa khứ phân từ
18. provided provided
19. put put
20. read read/readen
21. saw seen
22. slept slept
23. spent spent
24. studied
25. taked taken
26.thought/thinked thought/thinked
27.traveled/travelled traveled/travelled
28. visited visited
29.worked/wrought worked/wrought
30. wrote/writ written/writ