| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [adv] [adv] a year [adv] | 20 |
|
| 2 | [verb] [adv] [adv] a year [adv] | 20 |
|
| 3 | [vb past] [adv] [adv] a [noun] [adv] | 19 |
|
| 4 | [vb past] [adv] [adv] [art] year [adv] | 14 |
|
