| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is not generally [vb pp] that | 8 |
|
| 2 | it is not [adv] known that | 7 |
|
| 3 | it is not always [vb pp] that | 7 |
|
| 4 | it is not [adv] realized that | 5 |
|
