| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [adv] been [verb] to | 448 |
|
| 2 | has [adv] been [vb pp] to | 436 |
|
| 3 | has [adv] been shown [prep] | 51 |
|
| 4 | has [adv] been shown [prep] | 51 |
|
| 5 | have [adv] been shown to | 41 |
|
| 6 | [verb] [adv] been shown to | 41 |
|
| 7 | has [adv] be shown to | 25 |
|
| 8 | has [adv] [be] shown to | 25 |
|
| 9 | [vb -s] [adv] been shown to | 25 |
|
| 10 | has [adv] been show to | 25 |
|
| 11 | has [adv] been shown to | 25 |
|
| 12 | has [adv] [been] shown to | 25 |
|
