| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [adv] be show to | 24 |
|
| 2 | has [adv] been show to | 24 |
|
| 3 | has [adv] [been] show to | 24 |
|
| 4 | has [adv] [be] shown to | 24 |
|
| 5 | has previously [be] show to | 7 |
|
