SN4 ""

No	Pattern	Freq
1	[adv] it [is] that the [adj]	11
2	[Wh adv] it [is] that the [adj]	8
3	it [is] [adj] that the [adj]	492
4	it [is] [adj] that the [adj]	491
5	it [is] [verb] that the [adj]	220
6	it [is] [vb pp] that the [adj]	215
7	it [is] clear that the [adj]	83
8	it [is] clear that the [adj]	83
9	it [is] possible that the [adj]	52
10	it [is] possible that the [adj]	52
11	it [is] likely that the [adj]	48
12	it [is] likely that the [adj]	47
13	it [is] true that the [adj]	42
14	it [is] true that the [adj]	42
15	it [is] [adv] that the [adj]	36
16	it [is] [adv] that the [adj]	36
17	it [is] important that the [adj]	30
18	it [is] important that the [adj]	30
19	it [is] evident that the [adj]	22
20	it [is] evident that the [adj]	22
21	it [is] hope that the [adj]	19
22	it [is] hoped that the [adj]	19
23	it [is] unlikely that the [adj]	18
24	it [is] unlikely that the [adj]	18
25	it [is] probable that the [adj]	16
26	it [is] probable that the [adj]	16
27	it [is] thought that the [adj]	15
28	it [is] essential that the [adj]	15
29	it [is] think that the [adj]	15
30	it [is] essential that the [adj]	15