| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is not [adj] whether | 135 |
|
| 2 | is not [adj] whether | 135 |
|
| 3 | is not certain [conj] | 38 |
|
| 4 | be not certain whether | 25 |
|
| 5 | [be] not certain whether | 25 |
|
| 6 | [is] not certain whether | 14 |
|
| 7 | is not certain whether | 13 |
|
| 8 | is [not/n't] certain whether | 13 |
|
| 9 | is not certain whether | 13 |
|
| 10 | is [adv] certain whether | 13 |
|
