| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [verb] to | 714 |
|
| 2 | [adj] must be [verb] | 457 |
|
| 3 | [adj] be [verb] to | 92 |
|
| 4 | [adj] must [verb] to | 27 |
|
