| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] [adv prt] [art] | 497 |
|
| 2 | must be [verb] [adv prt] | 469 |
|
| 3 | must be [verb] [art] | 270 |
|
| 4 | must [verb] [adv prt] [art] | 100 |
|
