| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] [art] [noun sg] | 3926 |
|
| 2 | [vb infin] at [art] [noun sg] | 1658 |
|
| 3 | should [vb infin] at [art] | 115 |
|
| 4 | should [vb infin] at [noun sg] | 33 |
|
