| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb mod] i [vb infin] [art] | 144 |
|
| 2 | why [vb mod] [pron] [vb infin] [art] | 63 |
|
| 3 | why [vb mod] i [vb infin] [art] | 18 |
|
| 4 | why [modal v] i [vb infin] [art] | 18 |
|
| 5 | why [vb mod] i [verb] [art] | 18 |
|
