| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] n't know | 3342 |
|
| 2 | [pron] [vb past] know for | 39 |
|
| 3 | [vb past] n't know for | 11 |
|
| 4 | [pron] [vb past] n't for | 8 |
|
