| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be estimated that [adv] | 49 |
|
| 2 | it be estimated that [det] | 34 |
|
| 3 | be estimated that [adv] [det] | 10 |
|
| 4 | it be that [adv] [det] | 5 |
|
