| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] n't know it at the | 6 |
|
| 2 | [vb past] n't know it at [art] | 6 |
|
| 3 | [vb past] n't know it at [art] | 6 |
|
| 4 | [vb past] n't know it at [art] | 6 |
|
| 5 | [vb past] n't know it at the | 6 |
|
| 6 | did n't know it at [art] | 6 |
|
