| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [vb mod] | 2049 |
|
| 2 | [prep] what [vb mod] | 2049 |
|
| 3 | on [pron] [vb mod] | 385 |
|
| 4 | on what [modal v] | 151 |
|
| 5 | on what [vb mod] | 151 |
|
