| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why have n't [pron] been | 12 |
|
| 2 | why have n't [pron] [been] | 12 |
|
| 3 | why have n't [pron] [be] | 12 |
|
| 4 | why have n't [pron] be | 12 |
|
| 5 | why have n't [pers pn] [be] | 11 |
|
| 6 | why had n't [pron] [be] | 6 |
|
| 7 | why have n't [pron] [be] | 5 |
|
