| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [pron] [art] | 4483 |
|
| 2 | [Wh det] [modal v] [vb infin] [art] | 3433 |
|
| 3 | [Wh det] [modal v] [vb infin] [pron] | 1985 |
|
