| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [art] [noun] | 2060 |
|
| 2 | should be [art] [noun] | 1225 |
|
| 3 | should be [vb pp] [art] | 321 |
|
| 4 | should be [vb pp] [noun] | 186 |
|
