| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] could be shown to | 11 |
|
| 2 | [noun sg] could be shown to | 7 |
|
| 3 | could be shown to [be] | 15 |
|
| 4 | could be shown to be | 15 |
|
| 5 | could be shown to be | 15 |
|
| 6 | could be shown to [be] | 15 |
|
