| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | on which [prep] | 41 |
|
| 2 | on [Wh det] of | 19 |
|
| 3 | on [Wh det] to | 12 |
|
| 4 | on what [prep] | 9 |
|
| 5 | on [Wh det] in | 5 |
|
