SN4 ""

No	Pattern	Freq
1	[noun] is that [prep] [noun]	134
2	[noun sg] is that [prep] [noun]	120
3	[verb] is that [prep] [noun]	16
4	[adv] is that [prep] [noun]	12
5	[adv] is that [prep] [noun]	11
6	[noun pl] is that [prep] [noun]	8
7	point is that [prep] [noun]	7
8	difference is that [prep] [noun]	7
9	point is that [prep] [noun]	7
10	difference is that [prep] [noun]	7
11	[to-vb] is that [prep] [noun]	6
12	[adj] is that [prep] [noun]	6
13	[vb pp] is that [prep] [noun]	5
14	is [adj] that [prep] [noun]	59
15	is [adj] that [prep] [noun]	56
16	is [verb] that [prep] [noun]	35
17	is [vb pp] that [prep] [noun]	29
18	is clear that [prep] [noun]	13
19	is clear that [prep] [noun]	13
20	is true that [prep] [noun]	10
21	is true that [prep] [noun]	10
22	is [adv] that [prep] [noun]	7
23	is [adv] that [prep] [noun]	7
24	is possible that [prep] [noun]	5
25	is [noun] that [prep] [noun]	5
26	is estimate that [prep] [noun]	5
27	is likely that [prep] [noun]	5
28	is estimated that [prep] [noun]	5
29	is possible that [prep] [noun]	5
30	is likely that [prep] [noun]	5