| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have have a | 621 |
|
| 2 | must have [verb] a | 390 |
|
| 3 | must have have [art] | 117 |
|
| 4 | must [verb] have a | 102 |
|
| 5 | must [vb infin] have a | 102 |
|
| 6 | must have have a | 101 |
|
