| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] be [verb] must be | 16 |
|
| 2 | [noun sg] [be] [vb pp] must be | 15 |
|
| 3 | [noun sg] [is] [verb] must be | 12 |
|
| 4 | [noun sg] is [verb] must be | 12 |
|
