SN4 ""

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