| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] [be] [verb] [art] | 547 |
|
| 2 | [vb mod] [adv] [be] [verb] [art] | 547 |
|
| 3 | must [adv] [be] [verb] [art] | 28 |
|
| 4 | must [adv] [be] [verb] [art] | 25 |
|
| 5 | must [adv] [be] [verb] [art] | 25 |
|
