| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [not/n't] [verb] it [adv] | 18 |
|
| 2 | why not [verb] it [adv] | 18 |
|
| 3 | why [not/n't] [vb infin] it [adv] | 15 |
|
| 4 | why [not/n't] [verb] it [adv] | 9 |
|
| 5 | why [not/n't] [verb] it [adv prt] | 9 |
|
