SN4 ""

No	Pattern	Freq
1	[pron] have been [noun]	2001
2	there have been [noun]	1073
3	[ex0] have been [noun]	1073
4	there have been [noun]	1073
5	[noun] have been [noun]	835
6	[modal v] have been [noun]	673
7	[vb mod] have been [noun]	673
8	[pers pn] have been [noun]	657
9	[noun sg] have been [noun]	384
10	[adv] have been [noun]	245
11	it have been [noun]	242
12	it have been [noun]	242
13	[noun pl] have been [noun]	222
14	[noun prp] have been [noun]	220
15	[adv] have been [noun]	201
16	would have been [noun]	197
17	[Wh pn] have been [noun]	196
18	who have been [noun]	192
19	who have been [noun]	192
20	would have been [noun]	187
21	[adj] have been [noun]	154
22	he have been [noun]	152
23	he have been [noun]	147
24	must have been [noun]	120
25	must have been [noun]	120
26	[verb] have been [noun]	118
27	may have been [noun]	110
28	may have been [noun]	110
29	might have been [noun]	101
30	might have been [noun]	101