| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] [modal v] [adv] | 1071 |
|
| 2 | [modal v] [adv] [noun] | 813 |
|
| 3 | [Wh adv] [modal v] [noun] | 653 |
|
| 4 | [Wh adv] [adv] [noun] | 518 |
|
