| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [verb] n't [pron] | 2510 |
|
| 2 | then why [verb] [pron] | 95 |
|
| 3 | then [verb] n't [pron] | 77 |
|
| 4 | then why [verb] n't | 55 |
|
