| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pos pn] [noun] | 1981 |
|
| 2 | [modal v] [pos pn] [noun] | 698 |
|
| 3 | what [modal v] [noun] | 223 |
|
| 4 | what [modal v] [pos pn] | 108 |
|
