| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] have [been] [verb] [art] | 35 |
|
| 2 | might [adv] have [been] [verb] [art] | 6 |
|
| 3 | might [adv] have [be] [verb] [art] | 5 |
|
| 4 | might [adv] [verb] [been] [verb] [art] | 5 |
|
