| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] [verb] for [art] | 21 |
|
| 2 | should [vb infin] [vb pp] for [art] | 15 |
|
| 3 | should have [verb] for [art] | 12 |
|
| 4 | should [vb infin] [verb] for a | 11 |
|
| 5 | should [vb infin] [verb] for the | 9 |
|
