| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do n't | 2544 |
|
| 2 | why do [not/n't] | 1647 |
|
| 3 | why did [not/n't] | 752 |
|
| 4 | why does [not/n't] | 190 |
|
| 5 | why do not | 46 |
|
| 6 | why do [not/n't] | 5 |
|
