| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [Wh adv] [to-vb] | 908 |
|
| 2 | [subord] [adv] [to-vb] | 788 |
|
| 3 | [subord] [Wh adv] [verb] | 52 |
|
