| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [vb pp] that [num] [noun pl] | 15 |
|
| 2 | it is [vb pp] that one [noun] | 7 |
|
| 3 | it is [vb pp] that [num] [noun sg] | 7 |
|
| 4 | it is estimated that [num] [noun] | 5 |
|
