| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb past] n't [pers pn] | 740 |
|
| 2 | [conj] [vb past] n't [pers pn] | 125 |
|
| 3 | [conj] why [vb past] [pers pn] | 125 |
|
| 4 | [conj] why [vb past] n't | 58 |
|
