| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] know at the | 30 |
|
| 2 | [not/n't] know at the | 30 |
|
| 3 | [not/n't] know at the | 21 |
|
| 4 | n't know at the | 18 |
|
| 5 | not know at the | 12 |
|
| 6 | [not/n't] known at the | 8 |
|
