| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | might have been [v-ing] [pron] | 18 |
|
| 2 | might have been [v-ing] [pron] | 17 |
|
| 3 | might have been [v-ing] [pers pn] | 12 |
|
| 4 | might have been [v-ing] it | 5 |
|
| 5 | might have been [v-ing] it | 5 |
|
