| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [adv] a [noun] | 1227 |
|
| 2 | [verb] [adv] a year | 214 |
|
| 3 | [vb past] [adv] a year | 65 |
|
| 4 | [vb past] [adv] [art] year | 56 |
|
