| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] may not be [vb pp] | 161 |
|
| 2 | [noun sg] may [not/n't] be [vb pp] | 161 |
|
| 3 | [noun sg] may [not/n't] be known | 8 |
|
| 4 | [noun sg] may [not/n't] be used | 7 |
|
| 5 | [noun sg] may [not/n't] be required | 6 |
|
