| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] to | 62721 |
|
| 2 | [vb past] be [vb pp] | 33725 |
|
| 3 | [vb past] [vb pp] to | 7450 |
|
| 4 | [vb past] be to | 452 |
|
