| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [modal v] [be] [prep] [adj] | 48 |
|
| 2 | [pron] must [be] [prep] [adj] | 24 |
|
| 3 | they must [be] [prep] [adj] | 10 |
|
| 4 | they must [be] [prep] [adj] | 5 |
|
