| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may [verb] | 47741 |
|
| 2 | may [vb infin] | 47702 |
|
| 3 | [modal v] require | 1940 |
|
| 4 | [vb mod] require | 1940 |
|
| 5 | may require | 420 |
|
| 6 | may require | 420 |
|
