| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] have a | 818 |
|
| 2 | must [verb] [verb] a | 380 |
|
| 3 | must [verb] have [art] | 122 |
|
| 4 | must [verb] have [art] | 122 |
|
| 5 | must [verb] have a | 102 |
|
