SN4 ""

No	Pattern	Freq
1	been [vb pp] for [adj] years [prep]	51
2	been [vb pp] for [adj] years [prep]	51
3	been [vb pp] for [adj] years [conj]	27
4	been [vb pp] for [adj] years for	16
5	been [vb pp] for [adj] years for	16
6	been [vb pp] for [adj] years [coord]	14
7	been [vb pp] for [adj] years and	13
8	been [vb pp] for [adj] years and	13
9	been [vb pp] for [adj] years [subord]	9
10	been [vb pp] for [adj] years in	8
11	been [vb pp] for [adj] years in	8
12	been [vb pp] for [adj] years [adv]	7
13	been [vb pp] for [adj] years [adv]	7
14	been [vb pp] for [adj] years by	6
15	been [vb pp] for [adj] years by	6
16	[verb] been [vb pp] for [adj] years	162
17	have been [vb pp] for [adj] years	162
18	[vb -s] been [vb pp] for [adj] years	84
19	has been [vb pp] for [adj] years	78
20	[vb past] been [vb pp] for [adj] years	38
21	[vb base] been [vb pp] for [adj] years	37
22	had been [vb pp] for [adj] years	36
23	have been [vb pp] for [adj] years	30
24	[adv] been [vb pp] for [adj] years	25
25	[not/n't] been [vb pp] for [adj] years	21
26	not been [vb pp] for [adj] years	21
27	not been [vb pp] for [adj] years	13
28	n't been [vb pp] for [adj] years	8
29	've been [vb pp] for [adj] years	7
30	's been [vb pp] for [adj] years	6