SN4 ""

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