| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [not/n't] [verb] | 211077 |
|
| 2 | why [verb] [not/n't] | 2816 |
|
| 3 | why [not/n't] [verb] | 909 |
|
| 4 | why [verb] [verb] | 105 |
|
