| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] did n't know what | 46 |
|
| 2 | just did n't know [Wh det] | 21 |
|
| 3 | still did n't know [Wh det] | 11 |
|
| 4 | really did n't know [Wh det] | 6 |
|
