| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [be] [prep] [det] [noun sg] | 50 |
|
| 2 | must [verb] [be] [prep] [adj] [noun sg] | 22 |
|
| 3 | must [verb] [be] [prep] [det] [noun] | 16 |
|
| 4 | must [verb] [be] [prep] [det] [noun sg] | 14 |
|
