| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have [vb pp] a | 2745 |
|
| 2 | may have [vb pp] [art] | 767 |
|
| 3 | may have [verb] a | 376 |
|
| 4 | may [vb infin] [vb pp] a | 318 |
|
| 5 | may [verb] [vb pp] a | 318 |
|
| 6 | may have [vb pp] a | 317 |
|
