SN4 ""

No	Pattern	Freq
31	it [be] [adv] think that	66
32	it [be] [adv] recognise that	62
33	it 's [adv] [verb] that	62
34	it [be] [adv] recognised that	61
35	it [be] [adv] report that	49
36	it [be] [adv] reported that	49
37	it [be] [adv] claimed that	47
38	it [be] [adv] claim that	47
39	it [be] [adv] establish that	44
40	it [be] [adv] established that	44
41	it [be] [adv] felt that	43
42	it [be] [adv] feel that	43
43	it [be] further [verb] that	41
44	it [be] [adv] [v-ing] that	41
45	it [be] commonly [verb] that	40
46	it [be] [adv] recommend that	37
47	it [be] therefore [verb] that	37
48	it [be] [adv] recommended that	37
49	it [be] [adv] found that	35
50	it [be] [adv] find that	35
51	it [be] strongly [verb] that	34
52	it [be] always [verb] that	32
53	it [be] [adv] state that	30
54	it [be] later [verb] that	29
55	it [be] [adv] hold that	28
56	it [be] [adv] stated that	28
57	it [be] [adv] recognize that	28
58	it [be] [adv] decided that	27
59	it [be] usually [verb] that	27
60	it [be] [adv] held that	27