| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] do [not/n't] [verb] | 2400 |
|
| 2 | but do [not/n't] [verb] | 2231 |
|
| 3 | but [Wh pn] do [not/n't] | 38 |
|
