| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | might [adv] have been | 334 |
|
| 2 | [adv] have been [noun sg] | 47 |
|
| 3 | might have been [noun sg] | 45 |
|
| 4 | might [adv] have [noun sg] | 8 |
|
