SN4 ""

No	Pattern	Freq
1	is [adj] [to-vb] that	2045
2	is [adj] [to-vb] that	1987
3	is important [to-vb] that	484
4	is important [to-vb] that	484
5	is [adj] to note that	311
6	is [adj] to say that	234
7	is interesting [to-vb] that	183
8	is interesting [to-vb] that	183
9	is [adj] to remember that	131
10	is [adj] to believe that	117
11	is [adj] to assume that	115
12	is easy [to-vb] that	105
13	is easy [to-vb] that	103
14	is reasonable [to-vb] that	103
15	is reasonable [to-vb] that	103
16	is difficult [to-vb] that	97
17	is difficult [to-vb] that	97
18	is fair [to-vb] that	89
19	is fair [to-vb] that	89
20	is [adj] to ensure that	86
21	is [adj] to see that	83
22	is hard [to-vb] that	78
23	is hard [to-vb] that	78
24	is possible [to-vb] that	73
25	is possible [to-vb] that	73
26	is [adj] to suggest that	54
27	is [adj] to realise that	52
28	is necessary [to-vb] that	50
29	is necessary [to-vb] that	50
30	is [adj] to know that	49