| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [modal v] [be] of [adj] | 77 |
|
| 2 | [noun] must [be] of [adj] | 13 |
|
| 3 | [noun pl] must [be] [prep] [adj] | 10 |
|
| 4 | [noun pl] must [be] of [adj] | 9 |
|
