| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | might [not/n't] have been [adj] | 41 |
|
| 2 | might not have [been] [adj] | 41 |
|
| 3 | might [not/n't] have [been] [adj] | 34 |
|
| 4 | might [not/n't] have [been] able | 14 |
|
| 5 | might [not/n't] have [been] able | 14 |
|
