| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb past] not [pron] | 760 |
|
| 2 | why [vb past] not [pers pn] | 743 |
|
| 3 | [adv] [vb past] not i | 120 |
|
| 4 | why [verb] not i | 117 |
|
| 5 | why [vb past] not i | 58 |
|
| 6 | why [vb past] [adv] i | 58 |
|
