| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do not [pron] [verb] | 1968 |
|
| 2 | why [verb] not [pron] do | 98 |
|
| 3 | [adv] do not [pron] do | 96 |
|
| 4 | why do [adv] [pron] do | 91 |
|
