| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] [noun] | 6833 |
|
| 2 | but [prep] [det] [noun] | 2206 |
|
| 3 | but [prep] a [noun] | 1734 |
|
| 4 | but a [det] [noun] | 155 |
|
| 5 | but [prep] a [det] | 109 |
|
