| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] not a | 12 |
|
| 2 | a [adj] not a | 12 |
|
| 3 | a [adj] [not/n't] a | 12 |
|
| 4 | a [adj] [adv] a | 11 |
|
