| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb past] [vb pp] the | 1182 |
|
| 2 | [vb past] [vb pp] at the | 571 |
|
| 3 | who [vb past] at the | 197 |
|
| 4 | who [vb past] [vb pp] at | 103 |
|
