| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [vb past] you used [verb] | 8 |
|
| 2 | [Wh det] [verb] you used [verb] | 8 |
|
| 3 | [Wh det] did you used [verb] | 7 |
|
| 4 | [Wh det] do you used [verb] | 7 |
|
