| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been shown to | 19 |
|
| 2 | had [be] shown to | 19 |
|
| 3 | had be shown to | 19 |
|
| 4 | had [been] shown to | 19 |
|
| 5 | had shown [pron] to | 13 |
|
| 6 | had shown [pn reflx] to | 9 |
|
