| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to have been [vb pp] by a | 40 |
|
| 2 | [vb pp] to have been [verb] by a | 24 |
|
| 3 | [vb -s] to have been [verb] by a | 8 |
|
| 4 | seem to have been [verb] by a | 8 |
|
| 5 | [verb] to have been cause by a | 7 |
|
| 6 | [verb] to have been caused by a | 7 |
|
| 7 | [vb past] to have been [verb] by a | 7 |
|
| 8 | think to have been [verb] by a | 6 |
|
| 9 | say to have been [verb] by a | 6 |
|
| 10 | thought to have been [verb] by a | 6 |
|
| 11 | said to have been [verb] by a | 6 |
|
| 12 | appear to have been [verb] by a | 5 |
|
| 13 | report to have been [verb] by a | 5 |
|
