| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [verb] [prep] [det] | 3262 |
|
| 2 | may have [been] [verb] [prep] | 591 |
|
| 3 | may have [verb] [prep] [det] | 60 |
|
| 4 | may have [been] [prep] [det] | 13 |
|
| 5 | may have [been] [verb] [det] | 9 |
|
