| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [prep] [art] [adj] | 109 |
|
| 2 | [det] must be [art] [adj] | 92 |
|
| 3 | [det] be [prep] [art] [adj] | 22 |
|
| 4 | [det] must be [prep] [art] | 11 |
|
| 5 | [det] must be [prep] [adj] | 6 |
|
