| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be [prep] [det] | 899 |
|
| 2 | must [verb] be [prep] | 297 |
|
| 3 | must [verb] [prep] [det] | 270 |
|
| 4 | must [verb] be [det] | 100 |
|
| 5 | must be [prep] [det] | 48 |
|
