| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] know about [det] | 129 |
|
| 2 | [not/n't] know about [det] | 128 |
|
| 3 | n't know about [det] | 124 |
|
| 4 | [not/n't] know about that | 96 |
|
| 5 | [not/n't] know about this | 13 |
|
| 6 | [not/n't] know about all | 6 |
|
| 7 | [not/n't] know about these | 6 |
|
| 8 | not know about [det] | 5 |
|
