| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [verb] n't know what | 2028 |
|
| 2 | i [verb] n't know what | 2027 |
|
| 3 | i [verb] n't know what | 2027 |
|
| 4 | i do n't know what | 2027 |
|
| 5 | i [vb base] n't know what | 1792 |
|
| 6 | i do n't know what | 1791 |
|
| 7 | i [vb past] n't know what | 231 |
|
| 8 | i did n't know what | 231 |
|
