| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been [vb pp] out | 98 |
|
| 2 | it have been [vb pp] out | 98 |
|
| 3 | it has been [vb pp] out | 57 |
|
| 4 | it have been pointed out | 44 |
|
| 5 | it had been [vb pp] out | 28 |
|
| 6 | it 's been [vb pp] out | 13 |
|
| 7 | it have been carried out | 6 |
|
