| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not know that | 422 |
|
| 2 | n't know that | 281 |
|
| 3 | not know that | 221 |
|
| 4 | not to know that | 30 |
|
| 5 | not known that | 28 |
|
| 6 | not knowing that | 20 |
|
