| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have be [adv] | 2782 |
|
| 2 | must have be [adv] | 562 |
|
| 3 | must [verb] be [adv] | 543 |
|
| 4 | must [vb infin] be [adv] | 543 |
|
| 5 | must have be [adv] | 535 |
|
| 6 | must have [be] [adv] | 522 |
|
