| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [adv] [prep] a [noun sg] | 462 |
|
| 2 | but [not/n't] [prep] [art] [noun sg] | 314 |
|
| 3 | [conj] [not/n't] [prep] a [noun sg] | 227 |
|
| 4 | but [not/n't] [prep] a [noun] | 76 |
|
| 5 | but [not/n't] [prep] a [noun sg] | 74 |
|
