| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | never know how | 13 |
|
| 2 | now know how | 12 |
|
| 3 | certainly know how | 9 |
|
| 4 | also know how | 9 |
|
| 5 | already know how | 9 |
|
| 6 | really know how | 7 |
|
