| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it is [adv] [verb] | 688 |
|
| 2 | [subord] it is [adv] [vb pp] | 609 |
|
| 3 | [conj] it is [adv] known | 71 |
|
| 4 | [subord] it be [adv] known | 64 |
|
| 5 | [subord] it [be] [adv] known | 64 |
|
| 6 | [subord] it is [adv] known | 59 |
|
| 7 | [subord] [pron] is [adv] known | 55 |
|
| 8 | [subord] [pers pn] is [adv] known | 54 |
|
| 9 | [subord] it [is] [adv] known | 44 |
|
| 10 | [subord] it is [adv] know | 43 |
|
| 11 | [subord] it is [adv] known | 43 |
|
