| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] [adv] [pron] [verb] | 2110 |
|
| 2 | why do [adv] [pron] [verb] | 1970 |
|
| 3 | why [vb past] [adv] [pron] [verb] | 674 |
|
| 4 | [adv] did [adv] [pron] [verb] | 634 |
|
