SN4 ""

No	Pattern	Freq
1	have [adv] been [noun]	518
2	have [adv] been [noun sg]	302
3	had [adv] been [noun]	255
4	have [adv] been [noun pl]	229
5	have [adv] been [noun]	163
6	has [adv] been [noun]	134
7	have always been [noun]	120
8	have always been [noun]	120
9	have [not/n't] been [noun]	93
10	have not been [noun]	93
11	have also been [noun]	93
12	have also been [noun]	93
13	have [adv] been [noun prp]	73
14	have not been [noun]	61
15	have [adv] been part	45
16	have [adv] been part	45
17	have never been [noun]	44
18	have never been [noun]	44
19	have once been [noun]	40
20	have once been [noun]	40
21	have n't been [noun]	32
22	have long been [noun]	31
23	have long been [noun]	31
24	have all been [noun]	24
25	have already been [noun]	24
26	have all been [noun]	24
27	have already been [noun]	24
28	's [adv] been [noun]	22
29	have previously been [noun]	21
30	have previously been [noun]	21