| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [not/n't] [pers pn] | 5110 |
|
| 2 | why [vb past] [pers pn] | 1527 |
|
| 3 | why [vb past] [not/n't] | 860 |
|
| 4 | why [not/n't] [pers pn] | 21 |
|
