| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [verb] as a basis | 8 |
|
| 2 | [modal v] [vb infin] as a basis | 8 |
|
| 3 | [modal v] serve as a basis | 6 |
|
| 4 | [modal v] serve as a basis | 6 |
|
