| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been [v-ing] to | 38 |
|
| 2 | [modal v] have been [v-ing] to | 37 |
|
| 3 | must have been [v-ing] to | 10 |
|
| 4 | must have been [v-ing] to | 10 |
|
| 5 | might have been [v-ing] to | 7 |
|
| 6 | might have been [v-ing] to | 7 |
|
| 7 | would have been [v-ing] to | 6 |
|
| 8 | [modal v] have been listening to | 6 |
|
| 9 | would have been [v-ing] to | 6 |
|
| 10 | may have been [v-ing] to | 6 |
|
| 11 | may have been [v-ing] to | 6 |
|
| 12 | [modal v] have been speaking to | 5 |
|
| 13 | [modal v] have been referring to | 5 |
|
