| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [adj] [conj] [art] | 132 |
|
| 2 | [modal v] be [det] [conj] [art] | 123 |
|
| 3 | must be [det] [conj] [art] | 24 |
|
| 4 | must [be] [det] [conj] [art] | 24 |
|
| 5 | must [be] [det] [conj] [art] | 24 |
|
