SN4 ""

No	Pattern	Freq
1	it is [adv] that the [adj]	29
2	[pron] is [adv] that the [adj]	29
3	it is [adv] that the [adj]	29
4	[pers pn] is [adv] that the [adj]	29
5	[noun] is [adv] that the [adj]	15
6	[noun sg] is [adv] that the [adj]	13
7	is [verb] [adv] that the [adj]	17
8	is [adv] [adv] that the [adj]	16
9	is [vb pp] [adv] that the [adj]	16
10	is not [adv] that the [adj]	10
11	is [not/n't] [adv] that the [adj]	10
12	is not [adv] that the [adj]	10
13	is [adj] [adv] that the [adj]	7
14	is [adj] [adv] that the [adj]	7
15	is [adv] [adv] that the [adj]	6
16	is [adv] [adj] that the [adj]	201
17	is [adv] [adj] that the [adj]	199
18	is [adv] [verb] that the [adj]	105
19	is [adv] [vb pp] that the [adj]	97
20	is [adv] clear that the [adj]	24
21	is [adv] clear that the [adj]	24
22	is [adv] likely that the [adj]	23
23	is [adv] likely that the [adj]	23
24	is [adv] true that the [adj]	21
25	is [adv] true that the [adj]	21
26	is [adv] possible that the [adj]	17
27	is [adv] possible that the [adj]	17
28	is [adv] surprising that the [adj]	12
29	is [adv] important that the [adj]	12
30	is [adv] important that the [adj]	12