| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [verb] [det] | 1496 |
|
| 2 | might have [been] [verb] | 907 |
|
| 3 | might have [verb] [det] | 201 |
|
| 4 | might have [been] [det] | 35 |
|
