| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [noun sg] [modal v] [vb infin] | 217 |
|
| 2 | what [modal v] [noun] [vb infin] | 104 |
|
| 3 | [noun sg] [modal v] [noun] [vb infin] | 55 |
|
| 4 | what [noun sg] [modal v] [noun] | 48 |
|
