| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb past] not he go | 8 |
|
| 2 | why did [adv] he go | 8 |
|
| 3 | why [vb past] [not/n't] he go | 8 |
|
| 4 | why [vb past] n't he go | 8 |
|
