| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [modal v] be shown to be | 22 |
|
| 2 | [noun pl] [vb mod] [be] shown to be | 22 |
|
| 3 | [noun pl] can [be] shown to be | 17 |
|
| 4 | [noun pl] can [be] shown to be | 17 |
|
