| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] [prep] what [pron] | 54 |
|
| 2 | [prep] [v-ing] [prep] what [pron] | 54 |
|
| 3 | [prep] [v-ing] to [pron] [pron] | 35 |
|
| 4 | [prep] [verb] to what [pron] | 13 |
|
| 5 | [prep] [v-ing] to what [pron] | 7 |
|
