| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do n't know at [det] | 16 |
|
| 2 | do not know at all | 13 |
|
| 3 | do not know at [det] | 12 |
|
| 4 | did not know at [det] | 9 |
|
| 5 | do not know at [det] | 5 |
|
| 6 | do not know at this | 5 |
|
