| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [verb] [art] [noun] | 156 |
|
| 2 | they must [verb] [art] [noun] | 129 |
|
| 3 | they must be [verb] [art] | 19 |
|
| 4 | they must be [art] [noun] | 10 |
|
| 5 | they be [verb] [art] [noun] | 5 |
|
