| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it [be] not yet clear | 6 |
|
| 2 | but it be not yet clear | 6 |
|
| 3 | but it [be] not yet clear | 6 |
|
| 4 | but it [is] not yet clear | 5 |
|
| 5 | but it is not yet clear | 5 |
|
