| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] did n't know [Wh det] | 49 |
|
| 2 | [adv] did n't know what | 46 |
|
| 3 | [adv] did n't know what | 46 |
|
| 4 | just did n't know [pron] | 25 |
|
| 5 | still did n't know [pron] | 13 |
|
| 6 | really did n't know [pron] | 11 |
|
| 7 | [adv] did n't know [pers pn] | 9 |
|
