| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] estimated [that] | 351 |
|
| 2 | it [be] [that] [det] | 76 |
|
| 3 | [be] estimated [that] [det] | 50 |
|
| 4 | it [be] estimated [det] | 7 |
|
