| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] must be [verb] | 6921 |
|
| 2 | [noun sg] must be [verb] | 4407 |
|
| 3 | [noun sg] [noun] must be | 1131 |
|
| 4 | [noun sg] [noun] must [verb] | 877 |
|
| 5 | [noun sg] [noun] be [verb] | 408 |
|
