| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [not/n't] [adv] [verb] that | 68 |
|
| 2 | [is] [not/n't] [adv] [vb pp] that | 34 |
|
| 3 | [is] [not/n't] [adv] known [conj] | 29 |
|
| 4 | [is] [adv] [adv] known that | 21 |
|
| 5 | [be] [not/n't] [adv] known that | 7 |
|
| 6 | [is] [not/n't] [adv] known that | 7 |
|
| 7 | [is] [not/n't] [adv] know that | 7 |
|
