| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] know at the | 21 |
|
| 2 | [not/n't] know it at | 16 |
|
| 3 | know it at the | 12 |
|
| 4 | [not/n't] it at the | 5 |
|
