| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be estimated that | 351 |
|
| 2 | it [verb] be estimated | 144 |
|
| 3 | [verb] be estimated that | 129 |
|
| 4 | it [verb] be that | 47 |
|
| 5 | it [verb] estimated that | 7 |
|
