SN4 ""

No	Pattern	Freq
1	is [adj] that [pron]	2089
2	is [adj] that [pron]	1901
3	is [verb] that [pron]	898
4	is [vb pp] that [pron]	616
5	is [adv] that [pron]	383
6	is [pron] that [pron]	301
7	is [adv] that [pron]	253
8	is clear that [pron]	238
9	is clear that [pron]	238
10	is important that [pron]	196
11	is important that [pron]	196
12	is [det] that [pron]	173
13	is [to-vb] that [pron]	172
14	is [pers pn] that [pron]	158
15	is it that [pron]	155
16	is it that [pron]	155
17	is [indef pn] that [pron]	143
18	is possible that [pron]	141
19	is possible that [pron]	141
20	is likely that [pron]	137
21	is likely that [pron]	137
22	is such that [pron]	132
23	is such that [pron]	132
24	is not that [pron]	126
25	is [not/n't] that [pron]	126
26	is say that [pron]	118
27	is true that [pron]	114
28	is true that [pron]	114
29	is not that [pron]	112
30	is unlikely that [pron]	111