| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be be | 111 |
|
| 2 | [modal v] be be | 111 |
|
| 3 | should be be | 22 |
|
| 4 | should be [be] | 22 |
|
| 5 | should [be] be | 22 |
|
