| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] to [be] [adj] | 15 |
|
| 2 | must [vb infin] [prep] [be] [adj] | 15 |
|
| 3 | must [verb] [prep] be [adj] | 15 |
|
| 4 | must continue [prep] [be] [adj] | 5 |
|
| 5 | must continue [prep] [be] [adj] | 5 |
|
