SN4 ""

No	Pattern	Freq
1	[noun] have been [det] [prep]	54
2	[pron] have been [det] [prep]	36
3	[noun sg] have been [det] [prep]	30
4	[vb mod] have been [det] [prep]	25
5	[modal v] have been [det] [prep]	25
6	[noun pl] have been [det] [prep]	20
7	[adv] have been [det] [prep]	18
8	[pers pn] have been [det] [prep]	17
9	there have been [det] [prep]	14
10	[ex0] have been [det] [prep]	14
11	there have been [det] [prep]	14
12	not have been [det] [prep]	13
13	[not/n't] have been [det] [prep]	13
14	could have been [det] [prep]	9
15	could have been [det] [prep]	9
16	not have been [det] [prep]	8
17	it have been [det] [prep]	7
18	it have been [det] [prep]	7
19	[verb] have been [det] [prep]	6
20	would have been [det] [prep]	5
21	[adj] have been [det] [prep]	5
22	n't have been [det] [prep]	5
23	would have been [det] [prep]	5
24	[adv] have been [det] [prep]	5
25	have [adv] been [det] [prep]	30
26	have [adv] been [det] [prep]	21
27	have [not/n't] been [det] [prep]	9
28	have not been [det] [prep]	9
29	have never been [det] [prep]	9
30	have never been [det] [prep]	9