| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] n't have been on | 10 |
|
| 2 | [modal v] n't have been on | 10 |
|
| 3 | would n't have been on | 6 |
|
| 4 | would n't have been on | 6 |
|
