| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] when it [verb] been | 12 |
|
| 2 | [adv] when it [verb] been | 12 |
|
| 3 | [adv] when it have been | 12 |
|
| 4 | [adv] when it [vb -s] been | 8 |
|
| 5 | [adv] when it 's been | 5 |
|
