| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [be] [noun] | 443 |
|
| 2 | they [vb mod] [be] [noun] | 240 |
|
| 3 | they [modal v] [be] [noun] | 240 |
|
| 4 | they must [be] [noun] | 25 |
|
