| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] not clear that | 77 |
|
| 2 | be not clear that | 77 |
|
| 3 | [be] not clear that | 77 |
|
| 4 | [is] not clear that | 69 |
|
| 5 | is not clear that | 65 |
|
| 6 | was not clear that | 7 |
|
| 7 | [was/were] not clear that | 7 |
|
