| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [modal v] be keep open | 6 |
|
| 2 | [noun pl] [vb mod] be keep open | 6 |
|
| 3 | [noun pl] be keep a open | 6 |
|
| 4 | [noun pl] be keep [art] open | 6 |
|
| 5 | [noun pl] be keep an open | 6 |
|
| 6 | [noun pl] be keep [art] open | 6 |
|
