| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [pron] [adv] [verb] | 4108 |
|
| 2 | why [vb past] [pron] [verb] | 1304 |
|
| 3 | why [pron] [adv] [verb] | 241 |
|
| 4 | why [vb past] [pron] [adv] | 159 |
|
