| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] must [be] [verb] | 344 |
|
| 2 | must [be] [verb] for | 340 |
|
| 3 | [det] [be] [verb] for | 20 |
|
| 4 | [det] must [verb] for | 7 |
|
