| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [verb] | 58937 |
|
| 2 | but [pron] [verb] | 54064 |
|
| 3 | but when [pron] | 2635 |
|
| 4 | but when [verb] | 106 |
|
