| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it may [not/n't] be | 390 |
|
| 2 | it may have be | 321 |
|
| 3 | may [not/n't] have be | 248 |
|
| 4 | it may [not/n't] have | 34 |
|
| 5 | it [not/n't] have be | 15 |
|
