| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been [vb pp] to [be] | 30 |
|
| 2 | it [verb] been [vb pp] to be | 30 |
|
| 3 | it [verb] been [vb pp] to be | 29 |
|
| 4 | it [verb] been [vb pp] to [be] | 29 |
|
| 5 | it has been [vb pp] to [be] | 23 |
|
| 6 | it [vb -s] been [vb pp] to [be] | 23 |
|
| 7 | it had been [vb pp] to [be] | 7 |
|
| 8 | it [vb past] been [vb pp] to [be] | 7 |
|
| 9 | it [verb] been found to [be] | 6 |
|
| 10 | it [verb] been shown to [be] | 5 |
|
