| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] open [prep] | 21 |
|
| 2 | [be] [vb pp] open for | 8 |
|
| 3 | [be] kept open [prep] | 7 |
|
| 4 | [be] left open [prep] | 6 |
|
| 5 | [be] [vb pp] open to | 6 |
|
