| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] n't know whether [pron] [adv] | 21 |
|
| 2 | [verb] n't know [conj] they [adv] | 9 |
|
| 3 | [verb] [adv] know whether they [adv] | 6 |
|
| 4 | [verb] [not/n't] know whether they [adv] | 6 |
|
| 5 | [verb] n't [verb] whether they [adv] | 6 |
|
| 6 | [verb] not know whether they [adv] | 6 |
|
