| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] had | 213 |
|
| 2 | should [verb] had | 213 |
|
| 3 | should have had | 213 |
|
| 4 | should have had | 204 |
|
| 5 | should 've had | 9 |
|
