SN4 ""

No	Pattern	Freq
1	[noun] is that [adj] [noun] are	76
2	[noun sg] is that [adj] [noun] are	65
3	[adj] is that [adj] [noun] are	9
4	[noun pl] is that [adj] [noun] are	8
5	[adv] is that [adj] [noun] are	7
6	[verb] is that [adj] [noun] are	6
7	this is that [adj] [noun] are	5
8	[det] is that [adj] [noun] are	5
9	fact is that [adj] [noun] are	5
10	this is that [adj] [noun] are	5
11	fact is that [adj] [noun] are	5
12	is [adj] that [adj] [noun] are	84
13	is [adj] that [adj] [noun] are	82
14	is [verb] that [adj] [noun] are	51
15	is [vb pp] that [adj] [noun] are	41
16	is important that [adj] [noun] are	14
17	is important that [adj] [noun] are	14
18	is clear that [adj] [noun] are	13
19	is clear that [adj] [noun] are	13
20	is [adv] that [adj] [noun] are	11
21	is essential that [adj] [noun] are	10
22	is essential that [adj] [noun] are	10
23	is true that [adj] [noun] are	8
24	is [to-vb] that [adj] [noun] are	8
25	is true that [adj] [noun] are	8
26	is say that [adj] [noun] are	7
27	is not that [adj] [noun] are	7
28	is not that [adj] [noun] are	7
29	is [not/n't] that [adj] [noun] are	7
30	is assume that [adj] [noun] are	6