| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must have be [adj] | 751 |
|
| 2 | must have be [det] | 92 |
|
| 3 | [modal v] have be several | 8 |
|
| 4 | must [vb infin] be several | 6 |
|
| 5 | must [verb] be several | 6 |
|
| 6 | must have [be] several | 5 |
|
| 7 | must have be several | 5 |
|
| 8 | must have be several | 5 |
|
