| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] [adv] a | 1354 |
|
| 2 | [noun sg] [prep] a year | 520 |
|
| 3 | [prep] [adv] a year | 355 |
|
| 4 | [noun sg] [adv] a year | 117 |
|
