SN4 ""

No	Pattern	Freq
1	it is [adv] [adj] that	3236
2	it is [adv] [adj] that	3218
3	it is [adv] [adj] that	2591
4	it is [not/n't] [adj] that	645
5	it is not [adj] that	645
6	it is not [adj] that	635
7	it is [adv] surprising that	566
8	it is [adv] surprising that	566
9	it is [adv] clear that	344
10	it is also [adj] that	341
11	it is [adv] clear that	341
12	it is also [adj] that	341
13	it is [adv] true that	285
14	it is [adv] true that	285
15	it is [adv] likely that	282
16	it is [adv] likely that	281
17	it is [adv] important that	251
18	it is [adv] important that	251
19	it is [adv] possible that	249
20	it is [adv] possible that	249
21	it is quite [adj] that	244
22	it is quite [adj] that	244
23	it is very [adj] that	181
24	it is very [adj] that	181
25	it is [adv] unlikely that	160
26	it is hardly [adj] that	160
27	it is hardly [adj] that	160
28	it is [adv] unlikely that	160
29	it is therefore [adj] that	113
30	it is therefore [adj] that	113