| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | whether it have been [verb] | 27 |
|
| 2 | whether it [verb] been [vb pp] | 27 |
|
| 3 | whether it [verb] been [verb] | 27 |
|
| 4 | whether it [vb -s] been [verb] | 16 |
|
| 5 | whether it has been [verb] | 12 |
|
| 6 | whether it [vb past] been [verb] | 11 |
|
| 7 | whether it had been [verb] | 11 |
|
