| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | you should [verb] [vb pp] a | 19 |
|
| 2 | you should [vb infin] [vb pp] a | 19 |
|
| 3 | you should have [vb pp] a | 19 |
|
| 4 | you should [verb] [vb pp] a | 18 |
|
| 5 | you should have [vb pp] a | 16 |
|
