| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [noun sg] [vb mod] [noun sg] | 23 |
|
| 2 | what [noun sg] should [noun sg] | 13 |
|
| 3 | what [noun sg] should [noun sg] | 13 |
|
| 4 | what extent [modal v] [noun sg] | 5 |
|
