| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do [pron] know | 5081 |
|
| 2 | do they [verb] | 3141 |
|
| 3 | do they [vb infin] | 3055 |
|
| 4 | [verb] they know | 258 |
|
| 5 | do they know | 119 |
|
