| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been to | 32 |
|
| 2 | [modal v] have been to | 31 |
|
| 3 | would have been to | 16 |
|
| 4 | would have been to | 15 |
|
| 5 | must have been to | 8 |
|
| 6 | must have been to | 8 |
|
