SN4 ""

No	Pattern	Freq
1	[pers pn] [vb mod] have be [conj]	115
2	[pers pn] [modal v] have been [conj]	115
3	[pers pn] [modal v] have be [conj]	112
4	it [modal v] have be [conj]	93
5	[pers pn] [modal v] have be [subord]	67
6	[pers pn] [modal v] have be if	39
7	[pers pn] [modal v] have be if	39
8	[pers pn] would have be [conj]	36
9	[pers pn] would have be [conj]	36
10	[pers pn] [modal v] have be that	27
11	[pers pn] may have be [conj]	27
12	[pers pn] [modal v] have be that	27
13	[pers pn] may have be [conj]	27
14	[pers pn] [modal v] have be [that]	27
15	[pers pn] [modal v] have be [coord]	21
16	[pers pn] might have be [conj]	17
17	[pers pn] might have be [conj]	17
18	[pers pn] must have be [conj]	14
19	[pers pn] must have be [conj]	14
20	[pers pn] could have be [conj]	12
21	[pers pn] could have be [conj]	12
22	[pers pn] [modal v] have be because	11
23	[pers pn] [modal v] have be because	11
24	they [modal v] have be [conj]	11
25	[pers pn] [modal v] have be but	11
26	[pers pn] [modal v] have be but	10
27	[pers pn] [modal v] have be and	10
28	[pers pn] [modal v] have be and	10
29	[pers pn] should have be [conj]	9
30	[pers pn] should have be [conj]	9