| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be shown to [be] | 15 |
|
| 2 | could be shown [prep] be | 15 |
|
| 3 | could be shown [prep] be | 15 |
|
| 4 | could be shown [prep] [be] | 15 |
|
