| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [vb infin] [conj] [vb infin] | 527 |
|
| 2 | may [vb infin] [conj] [vb infin] | 314 |
|
| 3 | may not [vb infin] [conj] | 102 |
|
