| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have [be] [vb pp] [art] [adj] | 43 |
|
| 2 | may have [be] [verb] [art] [adj] | 16 |
|
| 3 | may [verb] [be] [vb pp] [art] [adj] | 6 |
|
