| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] to have been [adj] | 9 |
|
| 2 | it seem to have been [adj] | 6 |
|
| 3 | it [vb -s] to have been [adj] | 6 |
|
| 4 | it seems to have been [adj] | 5 |
|
