| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb mod] [not/n't] know | 712 |
|
| 2 | [pron] [vb mod] [not/n't] [prep] | 613 |
|
| 3 | [pron] [vb mod] know [prep] | 183 |
|
| 4 | [vb mod] [not/n't] know [prep] | 80 |
|
