SN4 ""

No	Pattern	Freq
1	some [adj] years	607
2	some [num] years	594
3	some twenty years	43
4	some twenty years	43
5	some ten years	38
6	some ten years	38
7	some two years	33
8	some two years	33
9	some three years	32
10	some three years	32
11	some five years	30
12	some five years	30
13	some thirty years	28
14	some thirty years	28
15	some 20 years	26
16	some 20 years	26
17	some four years	23
18	some four years	23
19	some forty years	18
20	some forty years	18
21	some eight years	16
22	some eight years	16
23	some 10 years	15
24	some 30 years	15
25	some 40 years	15
26	some 40 years	15
27	some 30 years	15
28	some 10 years	15
29	some fifty years	14
30	some fifteen years	14