| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | n't [verb] for | 1596 |
|
| 2 | n't know [prep] | 792 |
|
| 3 | [adv] know for | 533 |
|
| 4 | [not/n't] know for | 113 |
|
| 5 | not know for | 113 |
|
