| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [verb] [not/n't] know | 20176 |
|
| 2 | [Wh pn] [verb] [not/n't] [verb] | 3112 |
|
| 3 | [Wh pn] [verb] [adv] know | 277 |
|
