| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and why [verb] [pron] [vb infin] [to-vb] | 5 |
|
| 2 | and why do [pron] [vb infin] [to-vb] | 5 |
|
| 3 | and why [verb] [pers pn] [vb infin] [to-vb] | 5 |
|
