SN4 ""

No	Pattern	Freq
1	[noun] [num] years	3319
2	[noun sg] [adj] years	2347
3	[noun prp] [adj] years	851
4	[noun] two years	681
5	[noun] two years	681
6	[noun pl] [adj] years	437
7	[noun] [det] years	363
8	[noun] three years	342
9	[noun] three years	342
10	[noun] five years	244
11	[noun] five years	244
12	[noun] four years	236
13	[noun] four years	236
14	[noun] some years	152
15	[noun] some years	152
16	[noun] ten years	133
17	[noun] ten years	133
18	[noun] many years	124
19	[noun] many years	124
20	[noun] six years	119
21	[noun] six years	119
22	[noun] twenty years	90
23	[noun] twenty years	90
24	[noun] seven years	85
25	[noun] seven years	85
26	age [adj] years	82
27	[noun] 20 years	80
28	[noun] 20 years	80
29	age [adj] years	76
30	[noun] several years	72