| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been show to | 199 |
|
| 2 | have be shown to | 197 |
|
| 3 | has be show to | 111 |
|
| 4 | have be show to | 66 |
|
| 5 | had be show to | 19 |
|
