| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] know well | 59 |
|
| 2 | should [vb infin] well [subord] | 19 |
|
| 3 | [vb infin] know well [subord] | 15 |
|
| 4 | should know well [subord] | 10 |
|
