| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] [conj] [not/n't] a | 32 |
|
| 2 | a [adj] [coord] [not/n't] a | 29 |
|
| 3 | a [adj] but [adv] a | 15 |
|
| 4 | a [adj] but [not/n't] [art] | 12 |
|
| 5 | a [adj] but [not/n't] [art] | 12 |
|
| 6 | a [adj] but [not/n't] a | 11 |
|
| 7 | [art] [adj] but [not/n't] a | 10 |
|
| 8 | a [adj] but [not/n't] a | 9 |
|
