| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] be shown [prep] be [adj] | 36 |
|
| 2 | [vb -s] [been] shown [prep] be [adj] | 36 |
|
| 3 | [vb -s] [be] shown to be [adj] | 36 |
|
| 4 | has [be] shown [prep] be [adj] | 36 |
|
| 5 | [vb -s] been shown [prep] be [adj] | 36 |
|
| 6 | [vb -s] [be] shown [prep] be effective | 9 |
|
