| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] [prep] [noun sg] | 6147 |
|
| 2 | may have been [verb] [prep] | 591 |
|
| 3 | may have [verb] [prep] [noun sg] | 112 |
|
| 4 | may have been [prep] [noun sg] | 24 |
|
| 5 | may have been [verb] [noun sg] | 14 |
|
