| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] to be | 764 |
|
| 2 | been [vb pp] to be | 751 |
|
| 3 | [be] shown to be | 478 |
|
| 4 | be shown to be | 478 |
|
| 5 | been shown [prep] be | 222 |
|
| 6 | been show to be | 222 |
|
| 7 | [been] shown to be | 222 |
|
| 8 | been shown to be | 222 |
|
| 9 | been shown [prep] be | 222 |
|
| 10 | been shown to [be] | 222 |
|
