| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [verb] that | 4088 |
|
| 2 | it [is] [vb pp] that | 3957 |
|
| 3 | it [be] known that | 267 |
|
| 4 | it [is] know that | 158 |
|
| 5 | it [is] known [conj] | 158 |
|
| 6 | [pron] [is] known that | 153 |
|
| 7 | it [is] known that | 153 |
|
| 8 | [pers pn] [is] known that | 153 |
|
