| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who do it [verb] | 16 |
|
| 2 | [Wh pn] do it [vb infin] | 14 |
|
| 3 | [Wh pn] does it [verb] | 13 |
|
| 4 | [Wh pn] did it [verb] | 9 |
|
| 5 | [Wh pn] do it [vb past] | 6 |
|
