SN4 ""

No	Pattern	Freq
1	it [vb mod] be [vb pp] that [noun sg]	133
2	it [modal v] be [vb pp] that [noun sg]	133
3	it should be [vb pp] that [noun sg]	40
4	it should be [vb pp] that [noun sg]	40
5	it can be [vb pp] that [noun sg]	36
6	it can be [vb pp] that [noun sg]	36
7	it [modal v] be argued that [noun sg]	30
8	it [modal v] be noted that [noun sg]	24
9	it could be [vb pp] that [noun sg]	18
10	it could be [vb pp] that [noun sg]	18
11	it [modal v] be remembered that [noun sg]	17
12	it must be [vb pp] that [noun sg]	15
13	it must be [vb pp] that [noun sg]	15
14	it [modal v] be seen that [noun sg]	13
15	it may be [vb pp] that [noun sg]	11
16	it may be [vb pp] that [noun sg]	11
17	it [modal v] be said that [noun sg]	10
18	it might be [vb pp] that [noun sg]	7
19	it might be [vb pp] that [noun sg]	7
20	it [modal v] be assumed that [noun sg]	6
21	it will be [vb pp] that [noun sg]	6
22	it will be [vb pp] that [noun sg]	6
23	it [modal v] be recognised that [noun sg]	5