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