| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [pron] [verb] a [noun sg] | 1268 |
|
| 2 | why [pron] [verb] a [noun sg] | 74 |
|
| 3 | why [modal v] [pron] [verb] a | 30 |
|
| 4 | why [modal v] [pron] [verb] [noun sg] | 30 |
|
