| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [adj] [prep] [be] | 288 |
|
| 2 | [modal v] be [adj] [prep] [be] | 288 |
|
| 3 | must be [adj] [prep] [be] | 54 |
|
| 4 | must [be] [adj] [prep] [be] | 36 |
|
| 5 | must be [adj] [prep] [be] | 36 |
|
