| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] may be a | 542 |
|
| 2 | may [not/n't] be a | 168 |
|
| 3 | [ex0] may [not/n't] be | 57 |
|
| 4 | [ex0] [not/n't] be a | 11 |
|
