| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not know how it | 53 |
|
| 2 | not know how it | 53 |
|
| 3 | not know how it | 53 |
|
| 4 | n't know how it | 47 |
|
| 5 | not know how it | 6 |
|
