| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] why do [pers pn] [vb infin] | 10 |
|
| 2 | mean why do [pers pn] [vb infin] | 5 |
|
| 3 | [vb base] why do you [vb infin] | 5 |
|
| 4 | [vb base] why do we [vb infin] | 5 |
|
