21. after
22. against
23. among
24. at
25. before
26. between
27. by
28. down
29. from
30. in
31. off
32. on
33. over
34. through
35. to
36. under
37. up
38. with
39. as
40. for
41. of
42. till
43. than
44. a
45. the
46. all
47. any
48. every
49. no
50. other
51. some
52. such
53. that
54. this
55. i
56. he
57. you
58. who
59. and
60. because
