| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [be] [adj] [noun] | 498 |
|
| 2 | must [be] [det] [noun] | 211 |
|
| 3 | [modal v] [be] that [noun] | 126 |
|
| 4 | must [be] that [noun] | 11 |
|
