SN4 ""

No	Pattern	Freq
1	it be [adj] [to-vb] that [noun]	90
2	it be [adj] [to-vb] that [noun]	85
3	it be important [to-vb] that [noun]	14
4	it be important [to-vb] that [noun]	14
5	it be [verb] [to-vb] that [noun]	10
6	it be difficult [to-vb] that [noun]	10
7	it be difficult [to-vb] that [noun]	10
8	it be [v-ing] [to-vb] that [noun]	7
9	it be reasonable [to-vb] that [noun]	6
10	it be hard [to-vb] that [noun]	6
11	it be hard [to-vb] that [noun]	6
12	it be reasonable [to-vb] that [noun]	6
13	it be easy [to-vb] that [noun]	6
14	it be [noun] [to-vb] that [noun]	5
15	it be [noun sg] [to-vb] that [noun]	5
16	it be interesting [to-vb] that [noun]	5
17	it be interesting [to-vb] that [noun]	5