| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [modal v] be [prep] | 3937 |
|
| 2 | [noun] must be [prep] | 502 |
|
| 3 | [noun sg] must be [prep] | 327 |
|
| 4 | [noun sg] must be [prep] | 327 |
|
| 5 | [noun sg] must [be] [prep] | 327 |
|
| 6 | [noun sg] must [be] [prep] | 327 |
|
