| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [prep] [pos pn] | 9896 |
|
| 2 | should [vb infin] [prep] | 5558 |
|
| 3 | should [vb infin] [pos pn] | 1570 |
|
| 4 | should [prep] [pos pn] | 8 |
|
