| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [adv] a | 1866 |
|
| 2 | [adv] a year | 1618 |
|
| 3 | [noun sg] a year | 491 |
|
| 4 | [noun sg] [adv] year | 8 |
|
