| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] that [art] | 122 |
|
| 2 | it is [adv] certain that | 79 |
|
| 3 | is [adv] certain that [art] | 27 |
|
| 4 | it is certain that [art] | 20 |
|
| 5 | it [adv] certain that [art] | 6 |
|
