| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] must [be] [vb pp] | 6533 |
|
| 2 | must [not/n't] [be] [vb pp] | 544 |
|
| 3 | [noun] must [not/n't] [be] | 386 |
|
| 4 | [noun] [not/n't] [be] [vb pp] | 166 |
|
