| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of what have [vb pp] to | 44 |
|
| 2 | of what have [verb] to | 44 |
|
| 3 | of what have happen to | 39 |
|
| 4 | of what have happened to | 39 |
|
| 5 | of what had [verb] to | 19 |
|
| 6 | of what has [verb] to | 17 |
|
| 7 | of what 's [verb] to | 8 |
|
