| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] whether it had | 20 |
|
| 2 | [vb past] whether it had | 8 |
|
| 3 | wonder whether it had | 6 |
|
| 4 | [vb infin] whether it had | 5 |
|
| 5 | wondered whether it had | 5 |
|
