| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | might have been [adv] | 268 |
|
| 2 | [modal v] have been as | 60 |
|
| 3 | [vb mod] have been as | 60 |
|
| 4 | might have been as | 6 |
|
| 5 | might have be as | 6 |
|
| 6 | might [verb] been as | 6 |
|
| 7 | might have [been] as | 6 |
|
| 8 | might have [be] as | 6 |
|
