| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | an [adj] [conj] not a | 9 |
|
| 2 | an [adj] [conj] [not/n't] a | 9 |
|
| 3 | an [adj] [coord] [not/n't] a | 8 |
|
| 4 | an [adj] and [not/n't] a | 7 |
|
| 5 | an [adj] and [not/n't] a | 7 |
|
