| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it can be [vb pp] to be | 28 |
|
| 2 | it can be shown to [be] | 9 |
|
| 3 | it can be said to [be] | 6 |
|
| 4 | it can be seen to [be] | 5 |
|
