SN4 ""

No	Pattern	Freq
1	it is [adj] [to-vb] that [det]	217
2	it be [adj] [to-vb] that this	78
3	it be important [to-vb] that [det]	63
4	it be [adj] to note that [det]	38
5	it be [adj] [to-vb] that all	30
6	it be [adj] [to-vb] that these	29
7	it be [adj] [to-vb] that some	27
8	it be [adj] to say that [det]	26
9	it be [adj] to believe that [det]	23
10	it be interesting [to-vb] that [det]	22
11	it be [adj] [to-vb] that such	22
12	it be [adj] to assume that [det]	22
13	it was [adj] [to-vb] that [det]	22
14	it be [adj] to remember that [det]	21
15	it be difficult [to-vb] that [det]	19
16	it 's [adj] [to-vb] that [det]	17
17	it be reasonable [to-vb] that [det]	17
18	it be [adj] [to-vb] that any	17
19	it be hard [to-vb] that [det]	16
20	it be [adj] [to-vb] that many	16
21	it be easy [to-vb] that [det]	16
22	it be fair [to-vb] that [det]	14
23	it be [adj] [to-vb] that most	10
24	it be [adj] to ensure that [det]	10
25	it be [adj] to suppose that [det]	9
26	it be [adj] to think that [det]	9
27	it be possible [to-vb] that [det]	8
28	it be [adj] [to-vb] that that	8
29	it be [adj] to stress that [det]	7
30	it be [adj] to see that [det]	7