| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [be] [adj] [prep] be | 35 |
|
| 2 | must [be] [adj] to be | 35 |
|
| 3 | must be [adj] [prep] be | 35 |
|
| 4 | must [be] [adj] to be | 35 |
|
