| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] what [noun] | 1148 |
|
| 2 | [adv] what [modal v] | 544 |
|
| 3 | [adv] [modal v] [noun] | 309 |
|
| 4 | what [modal v] [noun] | 223 |
|
