| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do they [not/n't] [vb infin] | 13 |
|
| 2 | [Wh adv] do they not [vb infin] | 13 |
|
| 3 | [Wh adv] did they [not/n't] [vb infin] | 8 |
|
| 4 | [Wh adv] do they [not/n't] [vb infin] | 5 |
|
