| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | curious as to [adv] [pron] | 6 |
|
| 2 | curious as to [adv] [pers pn] | 6 |
|
| 3 | curious as to [Wh adv] [pron] | 6 |
|
| 4 | curious as to [adv] [pron] | 6 |
|
