| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not [be] [vb pp] | 15684 |
|
| 2 | may [adv] [be] [vb pp] | 2454 |
|
| 3 | may not [be] [verb] | 586 |
|
| 4 | may not [be] [vb pp] | 505 |
|
