| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [adv] a | 2400 |
|
| 2 | [adv] a year | 1618 |
|
| 3 | [vb past] a year | 217 |
|
| 4 | [vb past] [adv] year | 5 |
|
