| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [noun] [vb infin] | 213 |
|
| 2 | what should [vb infin] | 133 |
|
| 3 | what [noun] [vb infin] | 23 |
|
| 4 | what should [noun] | 19 |
|
