| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] might have been [v-ing] [verb] | 10 |
|
| 2 | [pers pn] might have been [v-ing] [verb] | 10 |
|
| 3 | might have been [v-ing] [verb] [pron] | 5 |
|
