| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] [vb past] a | 2817 |
|
| 2 | [vb past] at a | 973 |
|
| 3 | [Wh pn] [vb past] at | 613 |
|
| 4 | [Wh pn] at a | 8 |
|
