| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be [verb] to | 1848 |
|
| 2 | should [vb infin] be [verb] | 936 |
|
| 3 | [vb infin] be [verb] to | 498 |
|
| 4 | should [vb infin] [verb] to | 176 |
|
