| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what have been [vb pp] to | 36 |
|
| 2 | what has be [vb pp] to | 19 |
|
| 3 | what have be done to | 11 |
|
| 4 | what had be [vb pp] to | 10 |
|
| 5 | what 's be [vb pp] to | 6 |
|
