| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] [vb past] [vb pp] [to-vb] | 439 |
|
| 2 | [Wh pn] [vb past] [vb pp] at | 103 |
|
| 3 | [vb past] [vb pp] [to-vb] at | 97 |
|
| 4 | [Wh pn] [vb past] [to-vb] at | 18 |
|
