| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it is [adv] [verb] | 1804 |
|
| 2 | [conj] it is [adv] [vb pp] | 1474 |
|
| 3 | [conj] it be [adv] known | 163 |
|
| 4 | [conj] it [be] [adv] known | 163 |
|
| 5 | [conj] [pron] is [adv] known | 133 |
|
| 6 | [conj] it [is] [adv] known | 117 |
|
| 7 | [conj] it is [adv] know | 112 |
|
