| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] should [verb] [noun prp] | 9 |
|
| 2 | [Wh det] should [vb infin] [noun prp] | 9 |
|
| 3 | [Wh det] should [noun prp] [vb infin] | 5 |
|
| 4 | [Wh det] should [noun prp] [verb] | 5 |
|
