| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [adv] [adv] do | 68 |
|
| 2 | [verb] [adv] why do | 31 |
|
| 3 | [vb past] [adv] why [verb] | 12 |
|
| 4 | [vb past] [adv] why do | 9 |
|
