SN4 ""

No	Pattern	Freq
1	have [adv] been [vb pp] for [det]	53
2	have not been [vb pp] for [det]	28
3	have [not/n't] been [vb pp] for [det]	28
4	have [adv] been [vb pp] for [det]	25
5	have not been [vb pp] for [det]	24
6	has [adv] been [vb pp] for [det]	21
7	had [adv] been [vb pp] for [det]	16
8	have [adv] been [vb pp] for some	14
9	have [adv] been [vb pp] for [det]	13
10	have [adv] been [vb pp] for that	8
11	have [adv] been used for [det]	8
12	have never been [vb pp] for [det]	5
13	have [adv] been [vb pp] for this	5
14	have already been [vb pp] for [det]	5
15	have never been [vb pp] for [det]	5
16	have already been [vb pp] for [det]	5
17	have [adv] been [vb pp] for many	5
18	have [adv] been [vb pp] for several	5