| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when it [verb] been [verb] | 53 |
|
| 2 | when it have been [verb] | 53 |
|
| 3 | when it [verb] been [vb pp] | 49 |
|
| 4 | when it [vb -s] been [verb] | 36 |
|
| 5 | when it has been [verb] | 23 |
|
| 6 | when it had been [verb] | 17 |
|
| 7 | when it [vb past] been [verb] | 17 |
|
| 8 | when it 's been [verb] | 13 |
|
