| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it 's not [verb] | 903 |
|
| 2 | it 's not [vb pp] | 317 |
|
| 3 | it be not known | 189 |
|
| 4 | it [be] not known | 189 |
|
| 5 | it [is] not known | 160 |
|
| 6 | it 's [adv] known | 32 |
|
| 7 | it 's not know | 14 |
|
| 8 | [pers pn] 's not known | 12 |
|
| 9 | [pron] 's not known | 12 |
|
| 10 | it 's [not/n't] known | 11 |
|
| 11 | it 's not known | 11 |
|
| 12 | it 's not known | 11 |
|
