| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what it is that | 24 |
|
| 2 | [prep] what [pron] is that | 24 |
|
| 3 | [prep] what it is that | 24 |
|
| 4 | [prep] what [pers pn] is that | 24 |
|
| 5 | about what [pron] is that | 11 |
|
| 6 | of what [pron] is that | 8 |
|
