| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not know why [pron] [verb] | 309 |
|
| 2 | not know [adv] i [verb] | 167 |
|
| 3 | not [verb] why i [verb] | 123 |
|
| 4 | [adv] know why i [verb] | 100 |
|
