| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [adv] [adv] | 4729 |
|
| 2 | [adv] a [adv] | 3161 |
|
| 3 | but [adv] a | 1322 |
|
| 4 | but a [adv] | 381 |
|
