| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pron] know how [to-vb] | 86 |
|
| 2 | do [pron] know [adv] [to-vb] | 58 |
|
| 3 | do [pron] [verb] how [to-vb] | 53 |
|
| 4 | do [pron] know how [verb] | 48 |
|
