SN4 ""

No	Pattern	Freq
1	[adv] [prep] [num] years	635
2	[adv] for [adj] years	468
3	[adv] in [adj] years	296
4	[adv] [prep] [adj] years	210
5	[adv] [prep] [det] years	182
6	[adv] [prep] recent years	175
7	[adv] [prep] recent years	175
8	[adv] after [adj] years	111
9	[adv] [prep] many years	109
10	[adv] [prep] many years	109
11	there [prep] [adj] years	103
12	here [prep] [adj] years	77
13	[adv] [prep] three years	72
14	[adv] [prep] three years	72
15	[adv] [prep] two years	71
16	[adv] [prep] two years	71
17	[adv] [prep] five years	63
18	[adv] [prep] five years	63
19	together [prep] [adj] years	52
20	only [prep] [adj] years	52
21	so [prep] [adj] years	44
22	now [prep] [adj] years	40
23	[adv] [prep] ten years	38
24	[adv] [prep] four years	38
25	[adv] [prep] ten years	38
26	[adv] [prep] four years	38
27	even [prep] [adj] years	38
28	[adv] [prep] several years	36
29	[adv] [prep] several years	36
30	again [prep] [adj] years	33