| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] must be [vb pp] [adj] [subord] | 8 |
|
| 2 | [noun sg] must be [vb pp] [adj] [subord] | 7 |
|
| 3 | must be [vb pp] [adv] [adj] [subord] | 5 |
|
| 4 | must be [vb pp] [adv] [adj] [subord] | 5 |
|
