| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] is [prep] | 311 |
|
| 2 | [to-vb] what [pron] is | 130 |
|
| 3 | [to-vb] [pron] is [prep] | 116 |
|
| 4 | [to-vb] what is [prep] | 65 |
|
