| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] to [be] [art] | 3077 |
|
| 2 | must be [verb] to [art] | 342 |
|
| 3 | must be [verb] to [be] | 71 |
|
| 4 | must [verb] to [be] [art] | 20 |
|
