| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] been [vb pp] that | 51 |
|
| 2 | it have been [vb pp] that | 51 |
|
| 3 | it [verb] been [vb pp] that | 51 |
|
| 4 | it [vb -s] been [vb pp] that | 47 |
|
| 5 | it has been [vb pp] that | 42 |
|
| 6 | it [verb] been suggested that | 9 |
|
| 7 | it [verb] been shown that | 6 |
|
| 8 | it 's been [vb pp] that | 5 |
|
| 9 | it [verb] been reported that | 5 |
|
