SN4 ""

No	Pattern	Freq
1	it is [adv] [adj] that	2575
2	it is not [adj] that	643
3	it is [not/n't] [adj] that	643
4	it is not [adj] that	633
5	it is [adv] surprising that	566
6	it is [adv] clear that	341
7	it is also [adj] that	340
8	it is also [adj] that	340
9	it is [adv] true that	285
10	it is [adv] likely that	281
11	it is [adv] important that	251
12	it is [adv] possible that	249
13	it is quite [adj] that	244
14	it is quite [adj] that	244
15	it is very [adj] that	181
16	it is very [adj] that	181
17	it is hardly [adj] that	160
18	it is [adv] unlikely that	160
19	it is hardly [adj] that	160
20	it is therefore [adj] that	113
21	it is therefore [adj] that	113
22	it is highly [adj] that	108
23	it is highly [adj] that	108
24	it is more [adj] that	106
25	it is more [adj] that	106
26	it is [adv] certain that	94
27	it is certainly [adj] that	92
28	it is certainly [adj] that	92
29	it is most [adj] that	82
30	it is most [adj] that	82