| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] estimated that [num] [noun] | 15 |
|
| 2 | it be estimated [that] [num] [noun] | 15 |
|
| 3 | it was estimated [that] [num] [noun] | 9 |
|
| 4 | it [was/were] estimated [that] [num] [noun] | 9 |
|
| 5 | it [be] estimated [that] [num] [noun pl] | 8 |
|
| 6 | it [is] estimated [that] [num] [noun] | 6 |
|
| 7 | it is estimated [that] [num] [noun] | 5 |
|
