| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [adv] [prep] a | 2951 |
|
| 2 | [vb past] [adv] at [art] | 1331 |
|
| 3 | [verb] [adv] at a | 482 |
|
| 4 | [vb past] [adv] at a | 297 |
|
