| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] [vb past] it work | 7 |
|
| 2 | [Wh adv] [vb past] it work | 7 |
|
| 3 | [Wh adv] did it work | 7 |
|
| 4 | how [vb past] it work | 6 |
|
