| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] [pron] at [art] | 315 |
|
| 2 | when [pron] [vb past] at [art] | 224 |
|
| 3 | when [pron] [vb past] [pron] [art] | 152 |
|
| 4 | when [pron] [vb past] [pron] at | 47 |
|
