| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do [not/n't] know for | 44 |
|
| 2 | do not know for | 44 |
|
| 3 | do [adv] know for | 43 |
|
| 4 | do n't know for | 35 |
|
| 5 | do not know for | 9 |
|
