| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we still do [not/n't] know | 35 |
|
| 2 | we still do [not/n't] know | 35 |
|
| 3 | we still do n't know | 21 |
|
| 4 | we still do not know | 14 |
|
