| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [verb] [prep] [adj] | 394 |
|
| 2 | be [verb] [verb] [prep] [adj] | 273 |
|
| 3 | must be [verb] [verb] [prep] | 86 |
|
| 4 | must [verb] [verb] [prep] [adj] | 38 |
|
| 5 | must be [verb] [verb] [adj] | 32 |
|
