| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [indef pn] who [verb] at the | 11 |
|
| 2 | [indef pn] who [verb] at the | 11 |
|
| 3 | [indef pn] who [vb -s] at the | 6 |
|
| 4 | [indef pn] who [vb past] at the | 5 |
|
