SN4 ""

No	Pattern	Freq
1	[verb] been [vb pp] for [det] years	70
2	have been [vb pp] for [det] years	70
3	[vb -s] been [vb pp] for [det] years	33
4	has been [vb pp] for [det] years	31
5	[vb base] been [vb pp] for [det] years	19
6	[vb past] been [vb pp] for [det] years	18
7	had been [vb pp] for [det] years	18
8	have been [vb pp] for [det] years	16
9	[adv] been [vb pp] for [det] years	7
10	[not/n't] been [vb pp] for [det] years	6
11	not been [vb pp] for [det] years	6
12	not been [vb pp] for [det] years	5
13	been [adv] [vb pp] for [det] years	8
14	been [adv] [vb pp] for [det] years	8
15	been [vb pp] [adv] for [det] years	5
16	been [vb pp] for [det] years [prep]	19
17	been [vb pp] for [det] years [prep]	19
18	been [vb pp] for [det] years [conj]	14
19	been [vb pp] for [det] years [adv]	6
20	been [vb pp] for [det] years and	6
21	been [vb pp] for [det] years [coord]	6
22	been [vb pp] for [det] years and	6
23	been [vb pp] for [det] years [adv]	6
24	been [vb pp] for [det] years in	5
25	been [vb pp] for [det] years in	5