| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [num] year | 16424 |
|
| 2 | [adv] [prep] [num] | 13983 |
|
| 3 | [adv] [num] year | 7389 |
|
| 4 | [adv] [prep] year | 234 |
|
