SN4 ""

No	Pattern	Freq
1	but [adj] years	133
2	but [num] years	115
3	but two years	29
4	but two years	29
5	but [det] years	13
6	but ten years	10
7	but ten years	10
8	but three years	9
9	but five years	9
10	but five years	9
11	but three years	9
12	but twenty years	8
13	but twenty years	8
14	but 10 years	6
15	but 10 years	6
16	but [adj] years	5
17	but 20 years	5
18	but some years	5
19	but 20 years	5
20	but some years	5