| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | might [adv] [vb infin] [been] [det] | 6 |
|
| 2 | might [adv] have [been] [det] | 6 |
|
| 3 | might [adv] [verb] been [det] | 6 |
|
| 4 | might [adv] have [been] [det] | 6 |
|
