| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [adj] that | 3236 |
|
| 2 | it [be] [adv] certain that | 111 |
|
| 3 | it be [adv] certain that | 111 |
|
| 4 | it is [adv] certain [conj] | 109 |
|
| 5 | it [is] [adv] certain that | 104 |
|
| 6 | [pron] is [adv] certain that | 95 |
|
| 7 | it is [adv] certain [that] | 94 |
|
| 8 | it is [adv] certain that | 94 |
|
