| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] [art] [noun] | 37886 |
|
| 2 | must be [art] [noun] | 1198 |
|
| 3 | must be [adv] [art] | 59 |
|
| 4 | must be [adv] [noun] | 26 |
|
