| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pers pn] [vb past] at [noun] | 170 |
|
| 2 | [pers pn] [vb past] [pers pn] at [noun] | 162 |
|
| 3 | when [pers pn] [vb past] [pers pn] at | 43 |
|
| 4 | when [pers pn] [vb past] [pers pn] [noun] | 25 |
|
