| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [modal v] i [adv] [vb infin] | 12 |
|
| 2 | why [vb mod] i [adv] [vb infin] | 12 |
|
| 3 | why [modal v] i [adv] [vb infin] | 9 |
|
| 4 | why should i [adv] [vb infin] | 6 |
|
| 5 | why should i [adv] [vb infin] | 6 |
|
