| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] [pron] [vb infin] [art] | 180 |
|
| 2 | [adv] [vb -s] [pron] [vb infin] [art] | 124 |
|
| 3 | why [vb -s] [pron] [verb] [art] | 22 |
|
