| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] n't he come | 6 |
|
| 2 | why do [not/n't] he come | 6 |
|
| 3 | why [verb] [not/n't] he come | 6 |
|
| 4 | why did [not/n't] he come | 5 |
|
| 5 | why [vb past] [not/n't] he come | 5 |
|
