| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] may not [vb infin] [be] | 6 |
|
| 2 | [Wh det] may [not/n't] [vb infin] be | 6 |
|
| 3 | which may [not/n't] [vb infin] [be] | 5 |
|
| 4 | [Wh det] may [not/n't] [vb infin] been | 5 |
|
| 5 | [Wh det] may [not/n't] have [be] | 5 |
|
| 6 | [Wh det] may [not/n't] [vb infin] [been] | 5 |
|
