| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be shown [prep] [v-ing] | 8 |
|
| 2 | [vb mod] be shown [prep] [verb] | 8 |
|
| 3 | [vb mod] be shown by [verb] | 7 |
|
| 4 | [vb mod] be shown by [verb] | 7 |
|
| 5 | can be shown [prep] [verb] | 6 |
|
