| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [unc] do n't know [Wh det] | 9 |
|
| 2 | [unc] do [not/n't] know [Wh det] | 8 |
|
| 3 | [no cls] do [not/n't] know [Wh det] | 8 |
|
| 4 | [unc] do [not/n't] know what | 7 |
|
