| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] why do [pron] | 234 |
|
| 2 | [coord] [adv] do we | 92 |
|
| 3 | [coord] why [verb] we | 20 |
|
| 4 | [conj] why do we | 19 |
|
