| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pron] know [Wh adv] | 865 |
|
| 2 | [pron] know [Wh adv] [to-vb] | 718 |
|
| 3 | [conj] know [Wh adv] [to-vb] | 73 |
|
| 4 | [conj] [pron] know [to-vb] | 9 |
|
