| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must have [vb pp] [adj] | 500 |
|
| 2 | [modal v] have [vb pp] two | 54 |
|
| 3 | must [verb] [vb pp] two | 10 |
|
| 4 | must [vb infin] [vb pp] two | 10 |
|
| 5 | must have [verb] two | 10 |
|
| 6 | must have [vb pp] two | 10 |
|
