| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [Wh adv] why do [pers pn] | 5 |
|
| 2 | [Wh adv] why do [pers pn] [verb] | 19 |
|
| 3 | [Wh adv] why do [pers pn] [vb infin] | 19 |
|
| 4 | [Wh adv] why do [pers pn] think | 6 |
|
| 5 | [Wh adv] why do [pers pn] think | 6 |
|
