SN4 ""

No	Pattern	Freq
1	been [verb] for [adv] [adj] years	69
2	been [verb] for [adv] [adj] years	68
3	been [verb] for over [adj] years	32
4	been [verb] for over [adj] years	32
5	been [verb] for [adj] [adj] years	17
6	been [verb] for about [adj] years	15
7	been [verb] for about [adj] years	15
8	been [verb] for nearly [adj] years	10
9	been [verb] for [num] [adj] years	10
10	been [verb] for nearly [adj] years	10
11	been [verb] for [det] [adj] years	7
12	been [verb] for almost [adj] years	6
13	been [verb] for almost [adj] years	6
14	been [verb] for a [adj] years	6
15	been [verb] for a [adj] years	6
16	been [verb] for [art] [adj] years	6
17	been [verb] for [art] [adj] years	6
18	[verb] been [verb] for [adj] years	301
19	have been [verb] for [adj] years	301
20	[vb -s] been [verb] for [adj] years	144
21	has been [verb] for [adj] years	135
22	[vb past] been [verb] for [adj] years	85
23	had been [verb] for [adj] years	80
24	[vb base] been [verb] for [adj] years	67
25	have been [verb] for [adj] years	48
26	[adv] been [verb] for [adj] years	30
27	[not/n't] been [verb] for [adj] years	21
28	not been [verb] for [adj] years	21
29	've been [verb] for [adj] years	19
30	not been [verb] for [adj] years	13