| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb past] [verb] [art] | 2417 |
|
| 2 | [vb past] [verb] at [art] | 1372 |
|
| 3 | who [verb] at [art] | 344 |
|
| 4 | who [vb past] at [art] | 226 |
|
| 5 | who [vb past] [verb] at | 142 |
|
