| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been for | 62 |
|
| 2 | would have been for | 22 |
|
| 3 | would have been for | 22 |
|
| 4 | must have been for | 14 |
|
| 5 | must have been for | 14 |
|
| 6 | may have been for | 10 |
|
| 7 | may have been for | 10 |
|
| 8 | might have been for | 7 |
|
| 9 | might have been for | 7 |
|
