| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have be | 21175 |
|
| 2 | may [verb] be | 2962 |
|
| 3 | may [vb infin] be | 2962 |
|
| 4 | may have be | 2874 |
|
| 5 | may have [be] | 2870 |
|
