| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [adv] [adj] | 710 |
|
| 2 | [verb] must be [adj] | 56 |
|
| 3 | [verb] must be [adv] | 28 |
|
| 4 | [verb] be [adv] [adj] | 15 |
|
