| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [vb pp] to have been | 51 |
|
| 2 | it [be] [verb] to have been | 51 |
|
| 3 | it [be] [adj] to have been | 15 |
|
| 4 | it [be] [adj] to have been | 15 |
|
| 5 | it [be] think to have been | 14 |
|
| 6 | it [be] thought to have been | 14 |
|
| 7 | it [be] said to have been | 11 |
|
| 8 | it [be] say to have been | 11 |
|
| 9 | it [be] likely to have been | 6 |
|
| 10 | it [be] unlikely to have been | 6 |
|
| 11 | it [be] believed to have been | 6 |
|
| 12 | it [be] likely to have been | 6 |
|
| 13 | it [be] believe to have been | 6 |
|
| 14 | it [be] unlikely to have been | 6 |
|
