| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [adv] a [noun] | 620 |
|
| 2 | [adv] a [noun] [be] | 553 |
|
| 3 | but [adv] [noun] [be] | 286 |
|
| 4 | but a [noun] [be] | 135 |
|
