SN4 ""

No	Pattern	Freq
31	it one [prep]	117
32	it [adj] at	115
33	it [adj] at	115
34	it easy [prep]	101
35	it hard [prep]	82
36	it [adj] from	77
37	it [adj] from	77
38	it necessary [prep]	73
39	it necessary [prep]	73
40	it [adj] by	70
41	it [adj] by	70
42	it harder [prep]	61
43	it open [prep]	59
44	it open [prep]	59
45	it [num ord] [prep]	53
46	it [adj] as	49
47	it [adj] as	49
48	it right [prep]	47
49	it right [prep]	47
50	it available [prep]	39
51	it available [prep]	39
52	it ideal [prep]	38
53	it ideal [prep]	38
54	it ready [prep]	36
55	it ready [prep]	36
56	it good [prep]	35
57	it first [prep]	35
58	it first [prep]	35
59	it suitable [prep]	34
60	it suitable [prep]	34