| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [pron] | 12905 |
|
| 2 | what do [pron] | 10131 |
|
| 3 | [prep] do [pron] | 1258 |
|
| 4 | [prep] what do | 295 |
|
