| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is not clear [conj] [pron] [vb -s] | 7 |
|
| 2 | be not clear [conj] [pron] [vb -s] | 7 |
|
| 3 | be not clear [conj] [pers pn] [vb -s] | 5 |
|
