| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know whether [pron] | 839 |
|
| 2 | know [conj] i | 512 |
|
| 3 | [verb] whether i | 309 |
|
| 4 | [vb infin] whether i | 164 |
|
| 5 | know whether i | 128 |
|
