| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [adj] | 67488 |
|
| 2 | must be [adj] | 4591 |
|
| 3 | must [be] [adj] | 4591 |
|
| 4 | must [be] [adj] | 4588 |
|
