| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [pron] [vb past] | 184 |
|
| 2 | [pron] or [vb past] | 149 |
|
| 3 | at [pron] or | 82 |
|
| 4 | at or [vb past] | 9 |
|
