| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not know [pers pn] at the | 14 |
|
| 2 | not know it at the | 12 |
|
| 3 | n't know [pers pn] at the | 8 |
|
| 4 | not know [pers pn] at the | 6 |
|
