| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] to be acknowledged that | 7 |
|
| 2 | it [vb -s] to be acknowledged that | 7 |
|
| 3 | it have to be acknowledged that | 5 |
|
| 4 | it has to be acknowledged that | 5 |
|
