| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] not know for [adj] | 8 |
|
| 2 | [vb past] not know for [adj] | 8 |
|
| 3 | did not know for [adj] | 8 |
|
| 4 | [vb past] not know for sure | 6 |
|
| 5 | [vb past] not know for sure | 6 |
|
| 6 | [vb past] n't know for [adj] | 5 |
|
