| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may [adv] have [be] | 769 |
|
| 2 | [modal v] never have [be] | 234 |
|
| 3 | [vb mod] never have [be] | 234 |
|
| 4 | may never have [be] | 17 |
|
| 5 | may never [verb] [be] | 17 |
|
