| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb past] [be] | 3396 |
|
| 2 | who [vb past] to | 1627 |
|
| 3 | [vb past] [be] to | 452 |
|
| 4 | who [be] to | 172 |
|
