| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] it [verb] to | 27 |
|
| 2 | why [verb] it [vb infin] to | 23 |
|
| 3 | why do it [verb] to | 23 |
|
| 4 | why [verb] it have to | 20 |
|
| 5 | why [verb] it have to | 19 |
|
| 6 | why [vb past] it [verb] to | 15 |
|
| 7 | why did it [verb] to | 14 |
|
| 8 | why [vb -s] it [verb] to | 11 |
|
| 9 | why does it [verb] to | 9 |
|
