SN4 ""

No	Pattern	Freq
1	[pron] have been [noun] [noun]	180
2	[noun] have been [noun] [noun]	176
3	[vb mod] have been [noun] [noun]	101
4	[modal v] have been [noun] [noun]	101
5	[pers pn] have been [noun] [noun]	100
6	[noun sg] have been [noun] [noun]	91
7	[ex0] have been [noun] [noun]	49
8	there have been [noun] [noun]	49
9	there have been [noun] [noun]	49
10	[noun pl] have been [noun] [noun]	45
11	it have been [noun] [noun]	43
12	it have been [noun] [noun]	43
13	[noun prp] have been [noun] [noun]	40
14	he have been [noun] [noun]	27
15	[adv] have been [noun] [noun]	27
16	he have been [noun] [noun]	27
17	[adj] have been [noun] [noun]	26
18	[adv] have been [noun] [noun]	24
19	would have been [noun] [noun]	24
20	[Wh pn] have been [noun] [noun]	23
21	would have been [noun] [noun]	23
22	must have been [noun] [noun]	22
23	who have been [noun] [noun]	22
24	who have been [noun] [noun]	22
25	must have been [noun] [noun]	22
26	[verb] have been [noun] [noun]	18
27	might have been [noun] [noun]	17
28	may have been [noun] [noun]	17
29	may have been [noun] [noun]	17
30	might have been [noun] [noun]	17