SN4 ""

No	Pattern	Freq
1	have [adv] been [vb pp] in	1361
2	have [adv] been [vb pp] in	1091
3	has [adv] been [vb pp] in	579
4	have [adv] been [vb pp] in	396
5	had [adv] been [vb pp] in	343
6	have already been [vb pp] in	292
7	have already been [vb pp] in	292
8	have [not/n't] been [vb pp] in	270
9	have not been [vb pp] in	270
10	have not been [vb pp] in	248
11	have also been [vb pp] in	177
12	have also been [vb pp] in	177
13	have now been [vb pp] in	66
14	have now been [vb pp] in	66
15	have never been [vb pp] in	60
16	have never been [vb pp] in	60
17	have [adv] been seen in	59
18	have recently been [vb pp] in	57
19	have recently been [vb pp] in	57
20	have [adv] been used in	50
21	have [adv] been found in	48
22	have [adv] been made in	42
23	have [adv] been discussed in	32
24	have just been [vb pp] in	31
25	have long been [vb pp] in	31
26	have long been [vb pp] in	31
27	have just been [vb pp] in	31
28	have [adv] been reported in	30
29	have previously been [vb pp] in	30
30	have previously been [vb pp] in	30