| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [pers pn] [vb infin] | 2679 |
|
| 2 | [vb past] do [pers pn] [vb infin] | 152 |
|
| 3 | [vb past] why do [pers pn] | 12 |
|
