| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [that] [pron] [vb past] [not/n't] know | 6 |
|
| 2 | [vb infin] [that] [pron] [vb past] not know | 6 |
|
| 3 | [vb infin] [that] [pron] [vb past] [adv] know | 6 |
|
