| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] while [pron] [vb past] at the | 5 |
|
| 2 | while [pron] [vb past] at the [noun] | 14 |
|
| 3 | while [pron] [vb past] at the [noun sg] | 12 |
|
