| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [not/n't] [verb] [art] | 209 |
|
| 2 | why [not/n't] [vb infin] [art] | 203 |
|
| 3 | [adv] [not/n't] go [art] | 5 |
|
| 4 | why [not/n't] go [art] | 5 |
|
| 5 | why [adv] go [art] | 5 |
|
