| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] know why [pron] [verb] them | 8 |
|
| 2 | [not/n't] know why [pron] [verb] them | 8 |
|
| 3 | n't know why [pron] [verb] them | 8 |
|
| 4 | not know why [pron] [verb] them | 8 |
|
