| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not know that [verb] | 12 |
|
| 2 | not know that [verb] | 10 |
|
| 3 | n't know that [verb] | 9 |
|
| 4 | not know that do | 8 |
|
| 5 | not know that [vb base] | 7 |
|
| 6 | not know that do | 5 |
|
