| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [vb pp] | 33725 |
|
| 2 | be [vb pp] open | 317 |
|
| 3 | [vb past] [vb pp] open | 33 |
|
| 4 | [vb past] be open | 28 |
|
