| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] [verb] that [adj] | 280 |
|
| 2 | it [is] [adv] [vb pp] that [adj] | 268 |
|
| 3 | it [is] [adv] known [conj] [adj] | 49 |
|
| 4 | it [be] [adv] known that [adj] | 38 |
|
| 5 | [pers pn] [is] [adv] known that [adj] | 33 |
|
| 6 | [pron] [is] [adv] known that [adj] | 33 |
|
| 7 | it [is] [adv] know that [adj] | 33 |
|
| 8 | it [is] [adv] known that [adj] | 33 |
|
