| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [verb] [verb] at [art] | 25 |
|
| 2 | should [vb infin] [verb] at [art] | 25 |
|
| 3 | should [verb] [verb] at the | 20 |
|
| 4 | should have [verb] at [art] | 16 |
|
| 5 | should have [verb] at [art] | 16 |
|
| 6 | should [verb] [vb pp] at [art] | 16 |
|
| 7 | should [verb] [to-vb] at [art] | 7 |
|
| 8 | should [verb] look at [art] | 5 |
|
