SN4 ""

No	Pattern	Freq
1	it be [adv] [adv] [vb pp] that	150
2	it [be] [adv] [adv] [vb pp] that	150
3	it [be] [adv] [adv] [vb pp] that	150
4	it [is] [adv] [adv] [vb pp] that	116
5	it is [adv] [adv] [vb pp] that	112
6	it [be] now [adv] [vb pp] that	63
7	it [be] [adv] [adv] accepted that	38
8	it [be] [adv] generally [vb pp] that	37
9	it [was/were] [adv] [adv] [vb pp] that	32
10	it was [adv] [adv] [vb pp] that	32
11	it [be] [adv] widely [vb pp] that	31
12	it [be] [adv] well [vb pp] that	24
13	it [be] also [adv] [vb pp] that	22
14	it [be] [adv] [adv] known that	15
15	it [be] so [adv] [vb pp] that	12
16	it [be] [adv] [adv] agreed that	10
17	it [be] [adv] [adv] established that	10
18	it [be] still [adv] [vb pp] that	10
19	it [be] [adv] [adv] recognized that	7
20	it [be] [adv] [adv] believed that	7
21	it [be] [adv] [adv] held that	6
22	it [be] [adv] [adv] assumed that	5
23	it [be] [adv] universally [vb pp] that	5