| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | would then have been [verb] | 10 |
|
| 2 | would then have been [verb] | 10 |
|
| 3 | would then [vb infin] been [verb] | 10 |
|
| 4 | would then [verb] been [vb pp] | 7 |
|
