| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] a [noun] | 84968 |
|
| 2 | [coord] a [noun] | 45081 |
|
| 3 | but [art] [noun] | 30188 |
|
| 4 | but a [noun] | 3643 |
|
