SN4 ""

No	Pattern	Freq
1	[adv] it is that [art] [noun]	27
2	[adj] it is that [art] [noun]	25
3	[adj] it is that [art] [noun]	24
4	[Wh adv] it is that [art] [noun]	18
5	likely it is that [art] [noun]	14
6	likely it is that [art] [noun]	14
7	why it is that [art] [noun]	12
8	[Wh det] it is that [art] [noun]	12
9	why it is that [art] [noun]	12
10	[pron] it is that [art] [noun]	12
11	[prep] it is that [art] [noun]	11
12	[prep] it is that [art] [noun]	11
13	[adv] it is that [art] [noun]	9
14	what it is that [art] [noun]	9
15	what it is that [art] [noun]	9
16	how it is that [art] [noun]	6
17	how it is that [art] [noun]	6
18	of it is that [art] [noun]	5
19	of it is that [art] [noun]	5
20	it [verb] is that [art] [noun]	9
21	it [vb -s] is that [art] [noun]	8
22	it is [adj] that [art] [noun]	1633
23	it is [adj] that [art] [noun]	1630
24	it is [verb] that [art] [noun]	991
25	it is [vb pp] that [art] [noun]	966
26	it is clear that [art] [noun]	258
27	it is clear that [art] [noun]	258
28	it is important that [art] [noun]	165
29	it is important that [art] [noun]	165
30	it is possible that [art] [noun]	145