| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may have been [verb] [prep] | 591 |
|
| 2 | may have been [verb] [prep] | 591 |
|
| 3 | [modal v] have been [verb] for | 286 |
|
| 4 | may have been [verb] for | 30 |
|
| 5 | may have [be] [verb] for | 30 |
|
| 6 | may [verb] been [verb] for | 30 |
|
| 7 | may have be [verb] for | 30 |
|
| 8 | may have [been] [verb] for | 30 |
|
| 9 | may have been [verb] for | 30 |
|
| 10 | may [vb infin] been [verb] for | 30 |
|
