| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] why do [adv] | 46 |
|
| 2 | [coord] why do [not/n't] | 43 |
|
| 3 | [coord] why do not | 43 |
|
| 4 | [coord] why do n't | 42 |
|
| 5 | but why do [adv] | 26 |
|
| 6 | and why do [adv] | 17 |
|
