| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [not/n't] [adv] | 1903 |
|
| 2 | [not/n't] [adv] an | 477 |
|
| 3 | [subord] [adv] an | 176 |
|
| 4 | [subord] [not/n't] an | 40 |
|
