| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb mod] i [vb infin] [det] | 26 |
|
| 2 | why should i [vb infin] [det] | 23 |
|
| 3 | why [vb mod] i [vb infin] that | 20 |
|
| 4 | why [vb mod] i do [det] | 14 |
|
