| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it must be [verb] | 1448 |
|
| 2 | [conj] must be [verb] | 573 |
|
| 3 | [conj] it must be | 557 |
|
| 4 | [conj] it must [verb] | 352 |
|
