SN4 ""

No	Pattern	Freq
1	it is [adv] [adv] [verb] that	129
2	it is [adv] [adv] [verb] that	128
3	it is [adv] [adv] [vb pp] that	113
4	it is now [adv] [verb] that	64
5	it is [adv] [adv] accept that	34
6	it is [adv] [adv] accepted that	34
7	it is [adv] generally [verb] that	33
8	it is [adv] generally [verb] that	33
9	it is [adv] widely [verb] that	24
10	it is [adv] widely [verb] that	24
11	it is [adv] well [verb] that	19
12	it is [adv] well [verb] that	19
13	it is also [adv] [verb] that	14
14	it is [adv] [adv] know that	10
15	it is [adv] [adv] known that	10
16	it is [adv] [adv] establish that	9
17	it is [adv] [adv] established that	9
18	it is [adv] [adv] agree that	8
19	it is [adv] [adv] agreed that	8
20	it is [adv] [adv] [vb base] that	7
21	it is [adv] [adv] recognize that	7
22	it is [adv] [adv] recognized that	7
23	it is [adv] [adv] hold that	6
24	it is [adv] [adv] held that	6
25	it is [adv] [adv] clear that	6
26	it is [adv] [adv] clear that	6
27	it is [adv] [adv] [to-vb] that	5
28	it is so [adv] [verb] that	5
29	it is still [adv] [verb] that	5
30	it is therefore [adv] [verb] that	5