| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [not/n't] [verb] [subord] | 99 |
|
| 2 | it be [not/n't] known [subord] | 94 |
|
| 3 | it [be] [not/n't] known [subord] | 94 |
|
| 4 | it is [not/n't] [vb pp] [subord] | 93 |
|
| 5 | it [is] [not/n't] known [subord] | 83 |
|
| 6 | it is [not/n't] known [conj] | 79 |
|
| 7 | it is [not/n't] know [subord] | 78 |
|
| 8 | it is [adv] known [subord] | 78 |
|
| 9 | it is [not/n't] known [subord] | 77 |
|
| 10 | [pers pn] is [not/n't] known [subord] | 77 |
|
| 11 | [pron] is [not/n't] known [subord] | 77 |
|
