| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] must be [noun prp] [noun] | 10 |
|
| 2 | [noun sg] must be [noun] [noun] | 9 |
|
| 3 | [noun] must be [noun sg] [noun] | 6 |
|
| 4 | [noun] must be [noun] [noun prp] | 6 |
|
| 5 | [noun] must be [noun] [noun pl] | 6 |
|
| 6 | [noun pl] must be [noun] [noun] | 5 |
|
