| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [adv] a | 1322 |
|
| 2 | [noun prp] but [adv] | 563 |
|
| 3 | [noun prp] [adv] a | 293 |
|
| 4 | [noun prp] but a | 74 |
|
