| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] often wondered whether | 6 |
|
| 2 | [pron] often [vb past] whether | 6 |
|
| 3 | [pers pn] often [vb past] whether | 6 |
|
| 4 | i often [vb past] whether | 5 |
|
| 5 | i often [vb past] whether | 5 |
|
