| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can be [vb pp] to have [been] | 20 |
|
| 2 | can be [verb] to have been | 20 |
|
| 3 | can be said to have [been] | 8 |
|
| 4 | can be say to have [been] | 8 |
|
