| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] not [pron] | 2526 |
|
| 2 | why do not [pron] | 2356 |
|
| 3 | [adv] does not [pron] | 305 |
|
| 4 | why [vb -s] not [pron] | 135 |
|
| 5 | why does [adv] [pron] | 120 |
|
