| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | might [adv] have been [prep] | 12 |
|
| 2 | might [adv] [vb infin] been [prep] | 12 |
|
| 3 | might [adv] have been [prep] | 12 |
|
| 4 | might well [verb] been [prep] | 5 |
|
