| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why have n't [pron] be [verb] | 8 |
|
| 2 | why have n't [pers pn] be [verb] | 8 |
|
| 3 | why have n't [pron] been [verb] | 8 |
|
| 4 | why have n't [pron] be [verb] | 5 |
|
