| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [is] [verb] | 7775 |
|
| 2 | [conj] it [is] [vb pp] | 5412 |
|
| 3 | [conj] it [be] known | 229 |
|
| 4 | [conj] [pron] [is] known | 211 |
|
| 5 | [conj] it [is] know | 162 |
|
