| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do [not/n't] [verb] | 181798 |
|
| 2 | why do [not/n't] | 2594 |
|
| 3 | why [not/n't] [verb] | 909 |
|
| 4 | why do [verb] | 31 |
|
