| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] do [adv] | 7172 |
|
| 2 | why do [adv] | 1692 |
|
| 3 | why [adv] [adv] | 171 |
|
| 4 | why [adv] do | 42 |
|
