| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] shown to be [adv] | 7 |
|
| 2 | could [be] shown [prep] be [adv] | 7 |
|
| 3 | could [be] shown [prep] be [adv] | 7 |
|
| 4 | could [be] shown to be [adv] | 7 |
|
| 5 | could be shown [prep] be [adv] | 7 |
|
