| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [verb] a [noun] | 3290 |
|
| 2 | [vb mod] [verb] [verb] a [noun] | 3290 |
|
| 3 | must [verb] [verb] [art] [noun] | 600 |
|
| 4 | must [verb] [verb] a [noun] | 233 |
|
