| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] n't [pron] [vb infin] | 1949 |
|
| 2 | but [verb] n't [pron] [vb infin] | 117 |
|
| 3 | but why [verb] [pron] [vb infin] | 104 |
|
| 4 | but why [verb] n't [pron] | 43 |
|
