| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what have [vb pp] to | 562 |
|
| 2 | what have happened to | 498 |
|
| 3 | what have happen to | 498 |
|
| 4 | what had [verb] to | 213 |
|
| 5 | what 's [verb] to | 183 |
|
| 6 | what has [verb] to | 162 |
|
| 7 | what have come to | 29 |
|
| 8 | what have come to | 29 |
|
| 9 | what have got to | 5 |
|
| 10 | what have get to | 5 |
|
