| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this may [not/n't] [vb infin] | 79 |
|
| 2 | this may not [vb infin] | 79 |
|
| 3 | this may [not/n't] seem | 16 |
|
| 4 | this may [not/n't] have | 10 |
|
