| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb past] at the | 197 |
|
| 2 | [vb past] [noun prp] at the | 147 |
|
| 3 | who [vb past] [noun prp] at | 30 |
|
| 4 | who [vb past] [noun prp] the | 17 |
|
