SN4 ""

No	Pattern	Freq
1	[conj] it [be] [adv] [vb pp] that	348
2	[conj] it [be] [adv] [vb pp] that	348
3	[conj] it be [adv] [vb pp] that	348
4	[coord] it [be] [adv] [vb pp] that	205
5	[conj] it [is] [adv] [vb pp] that	196
6	[conj] it is [adv] [vb pp] that	184
7	[conj] it [was/were] [adv] [vb pp] that	151
8	[conj] it was [adv] [vb pp] that	150
9	[subord] it [be] [adv] [vb pp] that	124
10	and it [be] [adv] [vb pp] that	121
11	and it [be] [adv] [vb pp] that	121
12	but it [be] [adv] [vb pp] that	83
13	but it [be] [adv] [vb pp] that	83
14	[conj] it [be] generally [vb pp] that	55
15	[conj] it [be] [adv] known that	39
16	[conj] it [be] widely [vb pp] that	38
17	[conj] it [be] now [vb pp] that	35
18	although it [be] [adv] [vb pp] that	31
19	although it [be] [adv] [vb pp] that	31
20	[conj] it [be] well [vb pp] that	28
21	[conj] it [be] [adv] accepted that	26
22	[conj] it [be] [adv] assumed that	24
23	[conj] it [be] [adv] believed that	22
24	[conj] it [be] also [vb pp] that	21
25	[that] it [be] [adv] [vb pp] that	19
26	that it [be] [adv] [vb pp] that	19
27	that it [be] [adv] [vb pp] that	19
28	[conj] it [be] often [vb pp] that	17
29	[conj] it [be] [adv] recognised that	16
30	[conj] it [be] [adv] agreed that	16