| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] could be shown [prep] [be] | 11 |
|
| 2 | [noun sg] could be shown [prep] [be] | 7 |
|
| 3 | could be shown [prep] [be] [adv] | 7 |
|
| 4 | could be shown [prep] [be] [adv] | 7 |
|
