| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be in [det] | 229 |
|
| 2 | must [verb] be [det] | 100 |
|
| 3 | must [verb] be in | 90 |
|
| 4 | must [verb] in [det] | 31 |
|
| 5 | must be in [det] | 11 |
|
