| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] when [pron] [verb] | 6002 |
|
| 2 | but when [pron] [verb] | 2019 |
|
| 3 | [adv] but [pron] [verb] | 1167 |
|
| 4 | [adv] but when [pron] | 47 |
|
