| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it is [adv] [verb] [prep] | 647 |
|
| 2 | [conj] it is [adv] [vb pp] [prep] | 576 |
|
| 3 | [conj] it be [adv] known [prep] | 30 |
|
| 4 | [conj] it [be] [adv] known [prep] | 30 |
|
| 5 | [conj] [pron] is [adv] known [prep] | 30 |
|
| 6 | [conj] [pers pn] is [adv] known [prep] | 28 |
|
| 7 | [conj] it is [adv] known [prep] | 17 |
|
| 8 | [conj] it [is] [adv] known [prep] | 17 |
|
| 9 | [conj] it is [adv] know [prep] | 17 |
|
