SN4 ""

No	Pattern	Freq
1	it is [adv] [adj] that	2591
2	it is [adv] [adj] that	2575
3	it is also [adj] that	341
4	it is [adv] clear that	279
5	it is [adv] clear that	276
6	it is [adv] likely that	265
7	it is [adv] likely that	264
8	it is [adv] true that	256
9	it is [adv] true that	256
10	it is [adv] important that	250
11	it is [adv] important that	250
12	it is [adv] possible that	246
13	it is [adv] possible that	246
14	it is quite [adj] that	244
15	it is [adv] surprising that	199
16	it is [adv] surprising that	199
17	it is very [adj] that	181
18	it is hardly [adj] that	160
19	it is [adv] unlikely that	146
20	it is [adv] unlikely that	146
21	it is therefore [adj] that	113
22	it is highly [adj] that	108
23	it is more [adj] that	106
24	it is certainly [adj] that	92
25	it is most [adj] that	82
26	it is now [adj] that	81
27	it is [adv] certain that	79
28	it is [adv] certain that	79
29	it is perhaps [adj] that	75
30	it is almost [adj] that	65