| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] did i know | 8 |
|
| 2 | how [vb past] i know | 7 |
|
| 3 | [Wh adv] [vb past] i know | 7 |
|
| 4 | how [vb past] i know | 7 |
|
