| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | used for [adj] years | 27 |
|
| 2 | used [prep] [det] years | 22 |
|
| 3 | used [prep] many years | 19 |
|
| 4 | used [prep] many years | 19 |
|
| 5 | used [prep] [adj] years | 8 |
|
| 6 | used in [adj] years | 8 |
|
| 7 | used [prep] recent years | 7 |
|
| 8 | used [prep] recent years | 7 |
|
| 9 | used [prep] [num] years | 6 |
|
