| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] [prep] [art] | 56339 |
|
| 2 | must be [verb] [prep] | 5095 |
|
| 3 | must [verb] [prep] [art] | 1432 |
|
| 4 | must be [prep] [art] | 382 |
|
| 5 | must be [verb] [art] | 270 |
|
