| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] may [not/n't] be a | 10 |
|
| 2 | [ex0] may not be a | 10 |
|
| 3 | there may [not/n't] be a | 10 |
|
| 4 | [ex0] may [not/n't] be a | 10 |
|
