| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they should be [vb pp] | 720 |
|
| 2 | should be [vb pp] [adj] | 426 |
|
| 3 | they be [vb pp] [adj] | 283 |
|
| 4 | they should be [adj] | 235 |
|
