| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have be [verb] | 7122 |
|
| 2 | [modal v] have be [verb] | 7122 |
|
| 3 | must [verb] be [verb] | 829 |
|
| 4 | must have be [verb] | 793 |
|
| 5 | must have [be] [verb] | 793 |
|
