| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [adj] [prep] | 1038 |
|
| 2 | [verb] must be [adj] | 56 |
|
| 3 | [verb] be [adj] [prep] | 32 |
|
| 4 | [verb] must be [prep] | 18 |
|
