SN4 ""

No	Pattern	Freq
1	is important [to-vb] that the	140
2	is [adj] to note that the	90
3	is [adj] to say that the	61
4	is interesting [to-vb] that the	52
5	is [adj] to ensure that the	34
6	is [adj] to remember that the	33
7	is [adj] to assume that the	29
8	is reasonable [to-vb] that the	26
9	is possible [to-vb] that the	24
10	is difficult [to-vb] that the	23
11	is [adj] to see that the	22
12	is fair [to-vb] that the	22
13	is [adj] to believe that the	20
14	is easy [to-vb] that the	18
15	is necessary [to-vb] that the	17
16	is hard [to-vb] that the	15
17	is true [to-vb] that the	12
18	is sufficient [to-vb] that the	12
19	is right [to-vb] that the	12
20	is [adj] to argue that the	11
21	is [adj] to realise that the	10
22	is [adj] to stress that the	10
23	is [adj] to think that the	10
24	is [adj] to show that the	9
25	is tempting [to-vb] that the	9
26	is [adj] to suppose that the	9
27	is [adj] to recognize that the	8
28	is [adj] to establish that the	8
29	is [adj] to imagine that the	8
30	is essential [to-vb] that the	8