| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [noun] [noun pl] | 275 |
|
| 2 | must be [noun] [noun] | 109 |
|
| 3 | must [be] [noun] [noun pl] | 22 |
|
| 4 | must be [noun] [noun pl] | 22 |
|
| 5 | must [be] [noun] [noun pl] | 22 |
|
