| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [pers pn] not [vb infin] | 39 |
|
| 2 | why do you not [vb infin] | 21 |
|
| 3 | why do we not [vb infin] | 13 |
|
| 4 | why do they not [vb infin] | 5 |
|
