SN4 ""

No	Pattern	Freq
1	have been [vb pp] for [adj] years	162
2	[verb] been [vb pp] for [num] years	92
3	[vb -s] been [vb pp] for [adj] years	84
4	has been [vb pp] for [adj] years	78
5	[verb] been [vb pp] for [det] years	70
6	[verb] been [vb pp] for many years	50
7	[verb] been [vb pp] for many years	50
8	[vb past] been [vb pp] for [adj] years	38
9	[vb base] been [vb pp] for [adj] years	37
10	had been [vb pp] for [adj] years	36
11	have been [vb pp] for [adj] years	30
12	[verb] been jailed for [adj] years	26
13	[verb] been known for [adj] years	16
14	[verb] been [vb pp] for two years	15
15	[verb] been [vb pp] for two years	15
16	[verb] been [vb pp] for some years	15
17	[verb] been [vb pp] for some years	15
18	[verb] been [vb pp] for three years	14
19	[verb] been [vb pp] for three years	14
20	[verb] been used for [adj] years	12
21	[verb] been [vb pp] for seven years	8
22	[verb] been [vb pp] for seven years	8
23	[verb] been [vb pp] for five years	7
24	've been [vb pp] for [adj] years	7
25	[verb] been [vb pp] for five years	7
26	[verb] been separated for [adj] years	6
27	's been [vb pp] for [adj] years	6
28	[verb] been banned for [adj] years	5
29	[verb] been [vb pp] for 12 years	5
30	[verb] been established for [adj] years	5