SN4 ""

No	Pattern	Freq
1	it [vb mod] have be [conj]	93
2	it [modal v] have be [conj]	93
3	it [modal v] have been [conj]	93
4	it [modal v] have be [conj]	90
5	it [modal v] have be [subord]	52
6	it [modal v] have be if	28
7	it [modal v] have be if	28
8	it [modal v] have be [that]	27
9	it [modal v] have be that	27
10	it [modal v] have be that	27
11	it would have be [conj]	26
12	it would have be [conj]	26
13	it may have be [conj]	26
14	it may have be [conj]	26
15	it [modal v] have be [coord]	14
16	it might have be [conj]	13
17	it might have be [conj]	13
18	it must have be [conj]	12
19	it must have be [conj]	12
20	it [modal v] have be because	11
21	it [modal v] have be because	11
22	it could have be [conj]	10
23	it could have be [conj]	10
24	it [modal v] have be but	7
25	it [modal v] have be but	7
26	it [modal v] have be and	6
27	it should have be [conj]	6
28	it [modal v] have be and	6
29	it should have be [conj]	6