| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [not/n't] [pers pn] [vb infin] | 1946 |
|
| 2 | [vb past] why do [not/n't] [pers pn] | 23 |
|
| 3 | [vb past] do [not/n't] [pers pn] [vb infin] | 15 |
|
| 4 | [vb past] why do [pers pn] [vb infin] | 12 |
|
