| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | might have been [vb pp] [prep] | 313 |
|
| 2 | have been [vb pp] [prep] [det] | 299 |
|
| 3 | might have [vb pp] [prep] [det] | 43 |
|
| 4 | might have been [prep] [det] | 10 |
|
| 5 | might have been [vb pp] [det] | 6 |
|
