| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb base] not [pron] [verb] | 1319 |
|
| 2 | [vb past] why [vb base] not [pron] | 17 |
|
| 3 | [vb past] [vb base] not [pron] [verb] | 10 |
|
| 4 | [vb past] why [vb base] [pron] [verb] | 6 |
|
