SN4 ""

No	Pattern	Freq
1	[pron] have been [adv] years	7
2	[pers pn] have been [adv] years	6
3	have been [verb] [adv] years	6
4	have been [vb pp] [adv] years	6
5	have been [adv] [adj] years	66
6	have been [adv] [num] years	65
7	have been [adv] [prep] years	28
8	have been [adv] [prep] years	28
9	have been [adv] for years	25
10	have been [adv] for years	25
11	have been [adv] two years	7
12	have been [adv] three years	7
13	have been [adv] two years	7
14	have been [adv] three years	7
15	have been [adv] eight years	6
16	have been [adv] eight years	6
17	have been [adv] four years	5
18	have been [adv] four years	5