| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] may [vb infin] | 442 |
|
| 2 | [not/n't] [verb] [vb infin] | 323 |
|
| 3 | [not/n't] [verb] may | 16 |
|
| 4 | [not/n't] may [vb infin] | 7 |
|
