| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [is] [adv] [verb] | 1740 |
|
| 2 | [conj] it [is] [adv] [vb pp] | 1351 |
|
| 3 | [conj] it [is] [adv] known | 117 |
|
| 4 | [conj] it [be] [adv] known | 111 |
|
| 5 | [conj] [pron] [is] [adv] known | 95 |
|
| 6 | [conj] it [is] [adv] know | 77 |
|
