| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [is] [not/n't] [verb] | 697 |
|
| 2 | [conj] it [is] [not/n't] [vb pp] | 433 |
|
| 3 | [conj] it [is] [adv] known | 117 |
|
| 4 | [conj] it [be] [not/n't] known | 52 |
|
| 5 | [conj] [pron] [is] [not/n't] known | 44 |
|
| 6 | [conj] [pers pn] [is] [not/n't] known | 43 |
|
| 7 | [conj] it [is] [not/n't] know | 41 |
|
| 8 | [conj] it [is] [not/n't] known | 41 |
|
