| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] [be] shown to be | 10 |
|
| 2 | it [modal v] [be] shown to be | 10 |
|
| 3 | it [modal v] be shown to be | 10 |
|
| 4 | it can [be] shown to be | 9 |
|
| 5 | it can [be] shown to be | 9 |
|
