| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [modal v] [vb infin] | 18254 |
|
| 2 | [vb -s] [modal v] [vb infin] | 416 |
|
| 3 | [Wh det] [vb -s] [vb infin] | 257 |
|
| 4 | [Wh det] [vb -s] [modal v] | 118 |
|
