| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why have [not/n't] [pers pn] [vb pp] to | 6 |
|
| 2 | why [verb] [not/n't] [pers pn] [vb pp] to | 6 |
|
| 3 | why [verb] n't [pers pn] [vb pp] to | 6 |
|
| 4 | why [vb past] [not/n't] [pers pn] [vb pp] to | 6 |
|
| 5 | why had [not/n't] [pers pn] [vb pp] to | 6 |
|
