| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i should have [verb] a | 33 |
|
| 2 | i should have [verb] a | 30 |
|
| 3 | i should have [vb pp] a | 28 |
|
| 4 | i should have [to-vb] a | 5 |
|
