| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb -s] [pron] [vb infin] [pron] | 44 |
|
| 2 | why [vb -s] [pron] [not/n't] [vb infin] | 30 |
|
| 3 | [vb -s] [pron] [not/n't] [vb infin] [pron] | 17 |
|
