| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] a [adj] role | 18 |
|
| 2 | should [vb infin] a [adj] role | 18 |
|
| 3 | should [vb infin] a [adj] role | 14 |
|
| 4 | should play a [adj] role | 11 |
|
