| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adj] that [noun pl] | 52 |
|
| 2 | it clear that [noun pl] | 16 |
|
| 3 | it true that [noun pl] | 5 |
|
| 4 | it essential that [noun pl] | 5 |
|
