| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] to [art] [adj] | 1939 |
|
| 2 | should be [vb pp] to [art] | 777 |
|
| 3 | should be [vb pp] to [adj] | 293 |
|
| 4 | should be [vb pp] [art] [adj] | 124 |
|
