| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have [verb] [art] [noun] [prep] | 2075 |
|
| 2 | must [verb] [verb] [art] [noun] [prep] | 249 |
|
| 3 | must have [verb] [art] [noun] [prep] | 196 |
|
