| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | whether it [be] possible for | 7 |
|
| 2 | whether it [be] possible for | 7 |
|
| 3 | whether it [be] possible for | 7 |
|
| 4 | whether it be possible for | 7 |
|
| 5 | whether it [was/were] possible for | 5 |
|
