| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [num] year ['s] [noun] | 741 |
|
| 2 | [vb base] [prep] [num] year ['s] | 7 |
|
| 3 | [vb base] [num] year ['s] [noun] | 5 |
|
