| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [vb base] n't know [pron] | 2696 |
|
| 2 | i [vb base] n't know why | 657 |
|
| 3 | [vb base] n't know why [pron] | 443 |
|
| 4 | i [vb base] know why [pron] | 11 |
|
| 5 | i [vb base] n't why [pron] | 8 |
|
