| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to what do [pron] [vb infin] this | 7 |
|
| 2 | to what [verb] [pron] [vb infin] this | 7 |
|
| 3 | to what [vb base] [pron] [vb infin] this | 7 |
|
| 4 | to what [verb] [pers pn] [vb infin] this | 7 |
|
| 5 | to what do [pron] [vb infin] this | 7 |
|
| 6 | to what [verb] i [vb infin] this | 6 |
|
| 7 | to what [verb] i [vb infin] this | 6 |
|
| 8 | to what [verb] [pron] owe this | 6 |
|
