| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb past] [vb pp] [pers pn] | 936 |
|
| 2 | [vb past] [vb pp] [pers pn] at | 194 |
|
| 3 | who [vb past] [vb pp] at | 103 |
|
| 4 | who [vb past] [pers pn] at | 35 |
|
