| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] n't have been [prep] that | 6 |
|
| 2 | [modal v] n't have been [prep] that | 6 |
|
| 3 | [vb mod] n't [verb] been [prep] that | 6 |
|
| 4 | [modal v] n't [vb infin] been [prep] that | 6 |
|
