| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] must [be] [adj] | 462 |
|
| 2 | [noun pl] [be] keep [adj] | 106 |
|
| 3 | [noun pl] must [be] keep | 49 |
|
| 4 | must [be] keep [adj] | 45 |
|
