| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is clear that the | 330 |
|
| 2 | it is [not/n't] clear that | 65 |
|
| 3 | it is [not/n't] that the | 21 |
|
| 4 | is [not/n't] clear that the | 18 |
|
| 5 | it [not/n't] clear that the | 7 |
|
