| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did [pron] | 1349 |
|
| 2 | [adv] did i | 397 |
|
| 3 | why [verb] i | 315 |
|
| 4 | why do i | 250 |
|
| 5 | why [vb past] i | 101 |
|
