| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] [art] [noun] | 4542 |
|
| 2 | [vb infin] at [art] [noun] | 1984 |
|
| 3 | should [vb infin] at [art] | 115 |
|
| 4 | should [vb infin] at [noun] | 66 |
|
