SN4 ""

No	Pattern	Freq
1	[noun] [vb mod] have been in	155
2	[noun] [modal v] have been in	155
3	[noun] [modal v] have been in	153
4	[noun sg] [modal v] have been in	81
5	[noun] would have been in	50
6	[noun] would have been in	50
7	[noun] may have been in	36
8	[noun] may have been in	36
9	[noun prp] [modal v] have been in	36
10	[noun pl] [modal v] have been in	34
11	[noun] must have been in	24
12	[noun] must have been in	24
13	[noun] might have been in	16
14	[noun] might have been in	16
15	[noun] could have been in	14
16	[noun] could have been in	14
17	[noun] will have been in	8
18	[noun] will have been in	8
19	[noun] should have been in	6
20	[noun] should have been in	6