| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adv] did | 1733 |
|
| 2 | [adv] how [verb] | 967 |
|
| 3 | [adv] how do | 544 |
|
| 4 | [adv] [Wh adv] did | 513 |
|
| 5 | [adv] how [vb past] | 171 |
|
| 6 | [adv] how did | 152 |
|
