| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been [vb pp] to be | 107 |
|
| 2 | had been [verb] to be | 103 |
|
| 3 | [vb past] been find to be | 28 |
|
| 4 | [vb past] been found to be | 28 |
|
| 5 | [vb past] been shown to be | 13 |
|
| 6 | [vb past] been show to be | 13 |
|
| 7 | 'd been [verb] to be | 7 |
|
