| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have have a | 621 |
|
| 2 | may have [verb] a | 376 |
|
| 3 | may [vb infin] have a | 99 |
|
| 4 | may [verb] have a | 99 |
|
| 5 | may have have [art] | 84 |
|
| 6 | may have have a | 78 |
|
