| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] did [pron] [verb] | 2635 |
|
| 2 | [Wh det] [verb] [pron] know | 254 |
|
| 3 | [Wh det] do [pron] know | 233 |
|
| 4 | [pron] did [pron] know | 50 |
|
| 5 | [Wh det] [vb past] [pron] know | 41 |
|
