| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [prep] | 90859 |
|
| 2 | [modal v] [vb infin] a | 42897 |
|
| 3 | [vb infin] [prep] a | 15503 |
|
| 4 | [modal v] [prep] a | 325 |
|
