| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know how the | 57 |
|
| 2 | to know how the | 49 |
|
| 3 | know how the | 37 |
|
| 4 | knew how the | 23 |
|
| 5 | knows how the | 19 |
|
| 6 | knowing how the | 12 |
|
| 7 | known how the | 6 |
|
