| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [verb] [adv] [noun] | 11 |
|
| 2 | must [be] [verb] [adv] [noun sg] | 9 |
|
| 3 | must [be] [vb pp] [adv] [noun] | 7 |
|
| 4 | must [be] [verb] [adv prt] [noun] | 6 |
|
| 5 | must [be] [verb] [adv] [noun] | 5 |
|
