SN4 ""

No	Pattern	Freq
1	[adj] [num] years	3027
2	past [adj] years	2637
3	[adj] [det] years	522
4	[adj] two years	489
5	[adj] two years	489
6	[adj] few years	469
7	[adj] few years	469
8	[adj] five years	290
9	[adj] five years	290
10	[adj] three years	281
11	[adj] three years	281
12	previous [adj] years	258
13	[adj] ten years	189
14	[adj] ten years	189
15	[adj] 10 years	154
16	[adj] 10 years	154
17	[adj] [adj] years	147
18	[adj] four years	143
19	[adj] four years	143
20	[adj] 20 years	133
21	[adj] 20 years	133
22	following [adj] years	93
23	[adj] twenty years	93
24	[adj] six years	93
25	[adj] twenty years	93
26	[adj] six years	93
27	[adj] 30 years	91
28	[adj] 30 years	91
29	[adj] 12 years	78
30	[adj] 12 years	78