| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who may [adv] have been | 15 |
|
| 2 | who may [adv] [vb infin] been | 9 |
|
| 3 | who may not [vb infin] been | 6 |
|
| 4 | who may [not/n't] [vb infin] been | 6 |
|
| 5 | who may not [vb infin] been | 6 |
|
| 6 | who may well [vb infin] been | 5 |
|
| 7 | who may well [vb infin] been | 5 |
|
