| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how did [pron] know | 276 |
|
| 2 | how [verb] i know | 87 |
|
| 3 | how do i know | 87 |
|
| 4 | how did i [verb] | 55 |
|
| 5 | [adv] did i know | 8 |
|
| 6 | how [vb past] i know | 7 |
|
| 7 | [Wh adv] did i know | 7 |
|
| 8 | how did i know | 7 |
|
