| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [verb] [verb] a long | 6 |
|
| 2 | should [vb infin] [verb] a long | 6 |
|
| 3 | should have [verb] a long | 5 |
|
| 4 | should have [verb] a long | 5 |
|
| 5 | should [verb] [vb pp] a long | 5 |
|
