| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | on which [adv] | 51 |
|
| 2 | on what [adv] | 39 |
|
| 3 | on [Wh det] so | 13 |
|
| 4 | on [Wh det] both | 10 |
|
| 5 | on [Wh det] else | 8 |
|
| 6 | on [Wh det] exactly | 7 |
|
| 7 | on [Wh det] really | 6 |
|
