| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] do n't know what | 39 |
|
| 2 | [conj] [verb] n't know what | 39 |
|
| 3 | [conj] did n't know [pron] | 36 |
|
| 4 | [conj] did not know what | 33 |
|
| 5 | [conj] did [adv] know what | 33 |
|
| 6 | [conj] did [not/n't] know what | 33 |
|
| 7 | [conj] did n't [verb] what | 30 |
|
| 8 | [conj] did n't [vb infin] what | 30 |
|
| 9 | [conj] [vb past] n't know what | 23 |
|
| 10 | [conj] did n't know what | 23 |
|
