| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be clear that [art] [noun sg] | 309 |
|
| 2 | be not that [art] [noun sg] | 48 |
|
| 3 | be not clear that [art] | 24 |
|
| 4 | not clear that [art] [noun sg] | 14 |
|
