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