| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | on what [vb mod] | 151 |
|
| 2 | on what [vb mod] | 151 |
|
| 3 | on what might | 35 |
|
| 4 | on what can | 25 |
|
| 5 | on what would | 22 |
|
| 6 | on what should | 20 |
|
| 7 | on what could | 15 |
|
| 8 | on what will | 11 |
|
| 9 | on what may | 8 |
|
| 10 | on what must | 7 |
|
| 11 | on what used | 6 |
|
