| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [not/n't] know | 841 |
|
| 2 | [not/n't] know i | 357 |
|
| 3 | [vb -s] [not/n't] i | 23 |
|
| 4 | [vb -s] know i | 7 |
|
