| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] [noun] must be [verb] | 1615 |
|
| 2 | [prep] [art] [noun] must be | 597 |
|
| 3 | [prep] [noun] must be [verb] | 521 |
|
| 4 | [prep] [art] [noun] must [verb] | 398 |
|
| 5 | [prep] [art] [noun] be [verb] | 248 |
|
