| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adv] when | 1431 |
|
| 2 | [adv] but [adv] | 1200 |
|
| 3 | but [adv] when | 258 |
|
| 4 | [adv] but when | 57 |
|
