| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb -s] not [pers pn] [vb infin] | 10 |
|
| 2 | why does not [pers pn] [verb] | 10 |
|
| 3 | why [vb -s] not he [verb] | 10 |
|
| 4 | why [vb -s] not [pers pn] [verb] | 10 |
|
