| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] do [adv] | 14551 |
|
| 2 | why do [adv] | 2651 |
|
| 3 | [adv] why do | 663 |
|
| 4 | [adv] why [adv] | 295 |
|
