SN4 ""

No	Pattern	Freq
1	[pers pn] is [adj] [to-vb] that [pers pn]	188
2	it is [adj] [to-vb] that [pers pn]	182
3	it is [adj] [to-vb] that [pers pn]	181
4	[pron] is [adj] [to-vb] that it	71
5	[pron] is important [to-vb] that [pers pn]	48
6	[pron] is [adj] [to-vb] that they	42
7	[pron] is [adj] [to-vb] that he	33
8	[pron] is [adj] to say that [pers pn]	25
9	[pron] is [adj] [to-vb] that we	20
10	[pron] is [adj] to believe that [pers pn]	19
11	[pron] is hard [to-vb] that [pers pn]	17
12	[pron] is easy [to-vb] that [pers pn]	17
13	[pron] is reasonable [to-vb] that [pers pn]	16
14	[pron] is [adj] to see that [pers pn]	13
15	[pron] is [adj] to note that [pers pn]	13
16	[pron] is [adj] to remember that [pers pn]	12
17	[pron] is [adj] [to-vb] that you	12
18	[pron] is difficult [to-vb] that [pers pn]	11
19	[pron] is [adj] to assume that [pers pn]	9
20	[pron] is [adj] to realise that [pers pn]	9
21	[pron] is [adj] to know that [pers pn]	8
22	[pron] is [adj] [to-vb] that she	8
23	[pron] is [adj] to imagine that [pers pn]	7
24	[pron] is sufficient [to-vb] that [pers pn]	7
25	[pron] is [adj] to think that [pers pn]	7
26	[pron] is [adj] to understand that [pers pn]	6
27	[pron] is interesting [to-vb] that [pers pn]	5
28	[pron] is [adj] to argue that [pers pn]	5
29	[pron] is fair [to-vb] that [pers pn]	5
30	[pron] is [adj] to ensure that [pers pn]	5