| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] [pers pn] not [verb] | 164 |
|
| 2 | why [verb] [pers pn] not [vb infin] | 124 |
|
| 3 | why [verb] [pers pn] [adv] do | 9 |
|
| 4 | why [verb] [pers pn] not do | 8 |
|
| 5 | [adv] [verb] [pers pn] not do | 8 |
|
| 6 | why [verb] [pers pn] not do | 7 |
|
| 7 | [Wh adv] [verb] [pers pn] not do | 7 |
|
| 8 | why [verb] [pers pn] [not/n't] do | 7 |
|
| 9 | why [verb] [pron] not do | 7 |
|
| 10 | why [verb] [pers pn] not do | 7 |
|
