| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [pron] | 12907 |
|
| 2 | [prep] what [pron] | 12905 |
|
| 3 | in [pron] [pron] | 9780 |
|
| 4 | in what [pron] | 858 |
|
