| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] be [adv] [adj] | 324 |
|
| 2 | [modal v] [verb] be [adv] [det] | 72 |
|
| 3 | must [verb] be [adv] [det] | 13 |
|
| 4 | must [verb] [be] [adv] [det] | 12 |
|
