| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did [pron] [verb] | 1161 |
|
| 2 | why did [pers pn] [verb] | 1150 |
|
| 3 | [adv] did it [verb] | 387 |
|
| 4 | why [verb] it [verb] | 167 |
|
| 5 | why do it [verb] | 143 |
|
| 6 | why [vb past] it [verb] | 74 |
|
| 7 | why did it [verb] | 66 |
|
