| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | did [verb] | 9757 |
|
| 2 | did [vb infin] | 9517 |
|
| 3 | [verb] know | 818 |
|
| 4 | do know | 805 |
|
| 5 | did know | 172 |
|
| 6 | [vb past] know | 171 |
|
