| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] a [noun sg] | 1159 |
|
| 2 | [Wh det] should [vb infin] [noun sg] | 38 |
|
| 3 | [Wh det] should [vb infin] a | 24 |
|
| 4 | [Wh det] should a [noun sg] | 9 |
|
