| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be estimated that [noun] | 28 |
|
| 2 | it is estimated [that] [noun] | 15 |
|
| 3 | it be estimated [that] [noun sg] | 12 |
|
| 4 | it was estimated [that] [noun] | 12 |
|
| 5 | it be estimated [that] [noun prp] | 8 |
|
| 6 | it be estimated [that] [noun pl] | 5 |
|
