SN4 ""

No	Pattern	Freq
1	it is [adv] [adj] that [adj]	475
2	it is [adv] [adj] that [adj]	473
3	it is [adv] [adj] that [det]	298
4	it is [adv] [adj] that [adj]	155
5	it is also [adj] that [adj]	71
6	it is [adv] [adj] that this	59
7	it is [adv] [adj] that this	59
8	it is [adv] likely that [adj]	53
9	it is [adv] likely that [adj]	52
10	it is [adv] possible that [adj]	48
11	it is [adv] possible that [adj]	48
12	it is [adv] clear that [adj]	47
13	it is [adv] clear that [adj]	47
14	it is [adv] true that [adj]	46
15	it is [adv] true that [adj]	46
16	it is [adv] [adj] that many	43
17	it is [adv] [adj] that some	43
18	it is [adv] [adj] that many	43
19	it is [adv] [adj] that some	43
20	it is [adv] surprising that [adj]	37
21	it is [adv] surprising that [adj]	37
22	it is [adv] unlikely that [adj]	36
23	it is [adv] unlikely that [adj]	36
24	it is [adv] important that [adj]	35
25	it is [adv] important that [adj]	35
26	it is hardly [adj] that [adj]	34
27	it is [adv] [adj] that any	32
28	it is [adv] [adj] that any	32
29	it is quite [adj] that [adj]	29
30	it is highly [adj] that [adj]	28