| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb mod] [pers pn] [vb infin] for | 12 |
|
| 2 | why [vb mod] [pron] [vb infin] for | 12 |
|
| 3 | why should [pron] [vb infin] for | 11 |
|
| 4 | why [vb mod] i [vb infin] for | 7 |
|
| 5 | why [vb mod] i [vb infin] for | 7 |
|
