| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb -s] not | 1791 |
|
| 2 | [adv] why not | 249 |
|
| 3 | why [vb -s] not | 220 |
|
| 4 | [adv] why [vb -s] | 80 |
|
