| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [verb] how [to-vb] [art] | 44 |
|
| 2 | [conj] know [adv] [to-vb] [art] | 20 |
|
| 3 | [conj] know how [verb] [art] | 17 |
|
