| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [noun sg] [modal v] | 237 |
|
| 2 | [prep] what [noun sg] [noun] | 227 |
|
| 3 | [prep] [noun sg] [modal v] [noun] | 56 |
|
| 4 | what [noun sg] [modal v] [noun] | 48 |
|
