| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] [adj] | 52298 |
|
| 2 | must [be] [verb] | 12068 |
|
| 3 | must [be] [adj] | 4591 |
|
| 4 | must [verb] [adj] | 2862 |
|
