| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] a [num] | 731 |
|
| 2 | [prep] a [num] year | 491 |
|
| 3 | [adv] [prep] a year | 226 |
|
| 4 | [adv] [prep] [num] year | 112 |
|
| 5 | [adv] a [num] year | 41 |
|
