SN4 ""

No	Pattern	Freq
1	it be often [verb] that	163
2	it [be] often [vb pp] that	163
3	it [be] often [verb] that	163
4	it [be] often [verb] that	163
5	it [is] often [verb] that	154
6	it is often [verb] that	150
7	it [be] often say that	51
8	it [be] often said that	51
9	it [be] often assume that	27
10	it [be] often assumed that	27
11	it [be] often argue that	18
12	it [be] often argued that	18
13	it [be] often claimed that	12
14	it [be] often claim that	12
15	it was often [verb] that	9
16	it [be] often suggest that	9
17	it [was/were] often [verb] that	9
18	it [be] often suggested that	9
19	it [be] often forget that	7
20	it [be] often forgotten that	7
21	it [be] often find that	5
22	it [be] often thought that	5
23	it [be] often found that	5
24	it [be] often think that	5