| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] how [pron] | 5775 |
|
| 2 | know [adv] [pron] | 2430 |
|
| 3 | know [Wh adv] [pron] | 2175 |
|
| 4 | [vb infin] how [pron] | 1592 |
|
| 5 | know how [pron] | 1306 |
|
| 6 | know how [pron] | 618 |
|
