SN4 ""

No	Pattern	Freq
1	but [prep] [adj] years	150
2	but [prep] [adj] years	150
3	but [prep] [num] years	70
4	but in [adj] years	69
5	but in [adj] years	69
6	but [prep] [adj] years	57
7	but [prep] recent years	51
8	but [prep] recent years	51
9	but for [adj] years	26
10	but for [adj] years	26
11	but after [adj] years	25
12	but after [adj] years	25
13	but [prep] [det] years	16
14	but [prep] two years	15
15	but [prep] two years	15
16	but within [adj] years	12
17	but within [adj] years	12
18	but [prep] late years	8
19	but [prep] many years	8
20	but [prep] many years	8
21	but [prep] [adj -er] years	7
22	but [prep] later years	7
23	but [prep] three years	6
24	but [prep] three years	6
25	but [prep] 10 years	5
26	but [prep] 10 years	5
27	but [prep] five years	5
28	but at [adj] years	5
29	but at [adj] years	5
30	but [prep] five years	5