| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] [adv] know [Wh det] | 301 |
|
| 2 | [not/n't] [adv] [prep] [Wh det] | 79 |
|
| 3 | [not/n't] [adv] know [prep] | 49 |
|
| 4 | [adv] know [prep] [Wh det] | 46 |
|
| 5 | [not/n't] know [prep] [Wh det] | 37 |
|
