| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] [be] [vb pp] must be | 21 |
|
| 2 | [noun] [prep] be [vb pp] must be | 21 |
|
| 3 | [noun] [prep] be [vb pp] must be | 21 |
|
| 4 | [noun] to [be] [vb pp] must be | 21 |
|
| 5 | [noun sg] [prep] [be] [vb pp] must be | 11 |
|
| 6 | [noun pl] [prep] [be] [vb pp] must be | 8 |
|
