| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [verb] at the [det] [noun sg] | 10 |
|
| 2 | should [vb infin] at the [det] [noun sg] | 10 |
|
| 3 | should [verb] at the same [noun sg] | 10 |
|
| 4 | should [verb] at the [det] time | 6 |
|
