| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [verb] should [pron] | 5 |
|
| 2 | [modal v] be [verb] should [pron] | 5 |
|
| 3 | be [verb] should [pron] [vb infin] | 9 |
|
| 4 | be [verb] should [pron] [verb] | 9 |
|
