| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [verb] for [adj] [noun] | 964 |
|
| 2 | must [be] [verb] [prep] [adj] [noun] | 719 |
|
| 3 | must [be] [verb] [prep] [adj] [noun] | 719 |
|
| 4 | must [be] [verb] for [adj] [noun] | 59 |
|
