| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be [vb pp] [adj] | 426 |
|
| 2 | which should be [vb pp] | 399 |
|
| 3 | which be [vb pp] [adj] | 239 |
|
| 4 | which should be [adj] | 77 |
|
