SN4 ""

No	Pattern	Freq
1	it [be] [adv] [verb] that [noun pl]	116
2	it be [adv] [verb] that [noun pl]	116
3	it [be] [adv] [vb pp] that [noun pl]	111
4	it [is] [adv] [verb] that [noun pl]	88
5	it is [adv] [verb] that [noun pl]	82
6	it [was/were] [adv] [verb] that [noun pl]	28
7	it was [adv] [verb] that [noun pl]	28
8	it [be] well [verb] that [noun pl]	26
9	it [be] also [verb] that [noun pl]	19
10	it [be] [adv] known that [noun pl]	19
11	it [be] [adv] know that [noun pl]	19
12	it [be] often [verb] that [noun pl]	17
13	it [be] [adv] said that [noun pl]	13
14	it [be] [adv] say that [noun pl]	13
15	it [be] generally [verb] that [noun pl]	11
16	it [be] [adv] [verb] that women	9
17	it [be] [adv] assume that [noun pl]	9
18	it [be] [adv] assumed that [noun pl]	9
19	it [be] sometimes [verb] that [noun pl]	7
20	it [be] [adv] accepted that [noun pl]	7
21	it [be] [adv] accept that [noun pl]	7
22	it 's [adv] [verb] that [noun pl]	6
23	it [be] widely [verb] that [noun pl]	5
24	it [be] [adv] suggest that [noun pl]	5
25	it [be] [adv] argued that [noun pl]	5
26	it [be] [adv] suggested that [noun pl]	5
27	it [be] [adv] argue that [noun pl]	5