| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adv] i | 1670 |
|
| 2 | [prep] why [pron] | 440 |
|
| 3 | [prep] why [pers pn] | 377 |
|
| 4 | [prep] why i | 40 |
|
