| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] a [adj] | 17200 |
|
| 2 | [modal v] [vb infin] [art] [num ord] | 873 |
|
| 3 | [modal v] [verb] a [num ord] | 201 |
|
