| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] did [verb] | 15 |
|
| 2 | [Wh adv] [vb past] [vb infin] | 15 |
|
| 3 | how [vb past] [verb] | 10 |
|
| 4 | why [vb past] [verb] | 8 |
|
| 5 | [Wh adv] had [verb] | 6 |
|
| 6 | [Wh adv] [vb past] [vb pp] | 6 |
|
