| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] [modal v] be [noun] | 2117 |
|
| 2 | [pron] must be [noun] | 443 |
|
| 3 | [ex0] must [be] [noun] | 184 |
|
| 4 | [ex0] must [be] [noun] | 184 |
|
| 5 | [ex0] must be [noun] | 184 |
|
