| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] it is not [vb pp] whether | 11 |
|
| 2 | [coord] it [is] not known whether | 11 |
|
| 3 | [coord] it [is] not [vb pp] whether | 11 |
|
| 4 | but it [is] not [vb pp] whether | 7 |
|
