| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did n't [pron] [verb] | 605 |
|
| 2 | [vb past] why did n't [pron] | 8 |
|
| 3 | [vb past] why did [pron] [verb] | 6 |
|
| 4 | [vb past] did n't [pron] [verb] | 5 |
|
